One of the (for me) amazing benefits of eating a ketogenic diet is a dramatic decrease in appetite.

For some people, this can be a little scary, though, certainly if you are someone that is used to feeling hungry or wanting to eat a lot of the time.

For other people, it is a blessed relief to not be thinking about food all the time!

I have noticed that there seems to be 3 distinct phases in the changes of your appetite when you start eating keto.

Not everyone experiences this but it does seem to be pretty common.

Phase 1 – Increase in hunger

If you experience this it is likely to be in the first few days after transitioning to a ketogenic diet. It could be that you seem to be ravenous for carbs – which is simply your brain trying to get you to eat those carbs that it is used to fueling itself on.

This is perfectly normal and just a stage that you need to buckle down and get through in order to keto-adapt.

Alternatively (or additionally) you may feel like you suddenly can’t get enough of all the fatty goodness you have started eating. I definitely experienced this following a few days of carb cravings. All of a sudden it seemed like I just wanted to eat fatty protein and vegetables with tons of butter every minute of the day!

My theory on this is that once you start feeding your body the good stuff, a light switches on in your brain and you kind of go into overdrive. It’s like your brain and body saying ” Oh my goodness yes! This is the stuff!! Give me more!”.

If you experience this, just go for it. Don’t try to hold back and restrict your intake. Give yourself permission to feed and nourish yourself as much as you like. in all likelihood, this will only last for 2-3 days.

Phase 2 – Dramatic Decrease in Appetite

At around 2-3 weeks into your keto diet and in some cases a lot sooner, you may find that you suddenly don’t have any appetite at all. You can go for hours and hours without eating, and then when you do make a meal you have a few bites and don’t want any more.

I even started to find any food at all a little nauseating after just one or two bites.

Some people find it a struggle to even hit 1000kcals a day when this happens, and they start to worry that something has gone wrong. And if your goal is not to lose weight, but to maintain or even gain weight, it can be worrying.

But here’s the thing… If you experience this, don’t worry! It will pass.

It’s something that a lot of people go through in these beginning stages and although I can’t give you a scientific reason for it (sorry), do know that it’s very common and you will pop out of the other side.

If you find that you have a dramatic decrease in appetite my advice would be to eat very simple, small meals.

Focus on high-quality, calorie-dense nutrition so that every bite you take has the ability to nourish you. If you truly can’t stomach any food – don’t sweat it. Just wait until you can.

In this phase I found myself snacking more than eating meals. An example snack would be a boiled egg sprinkled with Himalayan salt. Or a few slices of cheese with cucumber. I ate a lot of fat bombs and plain chicken too.

I believe that in this stage your body is healing. Have faith that your body knows what it’s doing and don’t try to force yourself to eat.

Phase 3 – Balancing Out

My dramatic decrease in appetite lasted for around a week or two. After that, I started to find that I could finish my meals again, and over the next couple of weeks my hunger returned. But it was completely different to how it had been before starting keto.

I could still go for hours without eating, but then I would experience a definite hunger which was pleasant and I looked forward to eating. When eating my meal I could tell exactly when I had had enough and it was easy to stop. Following this, I was not hungry for a few more hours.

Basically, the ups and downs of hunger and being hangry had disappeared and it felt like my relationship with food had moved to an enjoyable, ‘food as fuel’ one.

It is around this point where I felt like I had truly keto-adapted. My mood swings had gone, my energy levels were steady through the day and I truly enjoyed my food when I was eating.

So those are the 3 phases! Do you recognise them? Are you experiencing anything like this? Let me know in the comments.

Framed image linking to ketogenic diet guides and plans

95 thoughts on “No Appetite on Keto? Here’s What to Do…”

  1. I have been on keto plan about 3 weeks. Nausea and no appetite for at least a week. If I force myself to eat, I feel lousy. Usually nauseous. Also I had Bariatric surgery on 2007, so can’t eat large amounts of food at one time.

    1. Hi Debra, it is very common to experience this, but it usually passes relatively quickly. Look after yourself and don’t force yourself to eat if you really can’t stomach it. Try to find some simple recipes or snacks that can just help to keep your calories up while your adapting. I have a little blog post here listing a few great keto snacks that might help:

      1. Thanks, Joan. I just needed to know what I’m going thru is normal. I’ve been dealing with a ton of stress and don’t want this change in eating to add to that. I’m just going to eat only when hungry and keep it very simple. Boiled eggs and string cheese sticks are about it.

    2. I’m surprised that your doctors agreed that a keto diet is good for a surgery patient. My associates who’ve had bariatric surgery were told to avoid a large intake of fat and to stick with lean protein. The cornerstone of a keto diet is a macronutrient ratio favoring 75% of your calories from fat.

      I thought the whole point of surgery is to suppress your desire for food and force you to eat less food. So I don’t know why you’d need to follow a diet that kills your appetite or why that would be a problem when it does.

      1. This is not so. They encourage you not to overdo fat at one sitting or you can have “dumping syndrome.” Not all of us dump on fat. Some only on sugar, some on both. The whole point of our surgery was to eat smaller amounts. You can do Keto if you do that and eat the fat with those smaller amounts. I find as long as I stay under 20 grams in one setting, I am good to go. I also had the drop in appetite after week 2 and actually this is very good for a bariatric surgery patient, ESPECIALLY after 5 years or more post-op. The reason being is eating less and having some of the intermittent fasting that naturally happens with a keto diet kind of resets the pouch. Our pouches an stretch (speaking from a Roux en Y prospective) and forcing ourselves to consume smaller protein and fat based meals is perfect. We aren’t eating “slider foods.” Those are almost always CARBS. I went from 300 to 160 in 2011. This year, I crept back up to 190 and I have lost 15 lbs so far. I feel better and have less issues with being “gassy.” I felt bad the first couple weeks and very tired. That went away about week 4 for me. I know that my surgeon always said “Protein first!” Protein is the one thing that fills me up the fastest and keeps me full. I was really doing a number on myself eating wheat thins and drinking with it. I could eat nearly a whole box and it wasn’t long before the bariatric surgery honeymoon was way over. Again, we can have fat. We just have to figure out our threshold before we “dump” and adjust the frequency of meals if we have a lower fat threshold. I can’t say enough good things about this diet. It is the first time my ferritin levels have stayed up without an Iron Infusion at the hospital. I feel hopeful.

      2. While it’s true that 75% of your calories come from fat… remember, they can come from inside of you. You don’t have to consume all of them. Just eat enough fat to make the meal great. You don’t have to add extra fat for the sake of adding it.

  2. Today is day eight for me on the Keto plan – and I literally had to force myself to eat my first meal. I am also doing a 16/8 fasting schedule. I have found that I have had no desire (at least the last couple of days) for my meals. I have not been able to get more than 1000 calories in during the last 3 days – my breakdown is 70% fat, 25% protein, 5% carbs.
    I am happy not to feel hungry – but this is not something I have ever experience (in my whole life). I should add that I am carrying around 25-30 extra pounds of weight, so it is not like I will waste away … I am just concerned about slowing my metabolism down. I have also lost 7.5 lbs in the last 8 days.

    1. Hi Sharon, yes it can be really odd when you’re appetite disappears, I totally hear you on that one. Focus on eating high quality and high calories keto foods that you enjoy, and perhaps look into making some fat bombs. In my experience, appetite does return! It may be worth holding off on doing intermittent fasting for the time being though, as this can be a little stressful to the body. Keep things gentle, and treat yourself and your food with love and all will be well. 🙂

    2. I’m having almost the same exact experience as you described. I don’t want to force myself to eat, but at the same time, I do not want to slow down my metabolism. I do not know what to do about it.

      1. Same, I have been on Keto for about 2 weeks, It is kind of freaking me out, because I am worried I will go in to starvation mode, so i have been eating a little here and there, but nothing crazy.

        I am hoping to snap out of it, because I feel like crap and I dont want to give up. I loved how I felt the fist two weeks, so much energy an mental clarity. It was great. Now I feel like just sick and gross… I dont like it at all.

  3. This is exactly what I’m experiencing now. Today is the start of my second week with keto and I am barely hitting 1000 calories a day. In fact, my days are usually less than 1000 calories. I was worried that this was a bad thing. This morning for breakfast I am having a hard boiled egg, some almonds, and cheese cubes. I brought shredded chicken thighs to eat over lettuce with some avocado for lunch, and I’m making cauliflower fried rice for dinner. Does this sound like a good keto eating day? I’m loving this way of eating because I don’t feel as restricted as I thought I would. Any tips of advice are greatly appreciated! Thank you!!

    1. Hi Erin, it sounds to me like you need more fat in your daily meals! Perhaps try making some fat bombs, or a keto mayonnaise to go with your chicken thighs. Don’t be afraid of the fat! It will help you to keep your calories up while you are experiencing a drop in appetite, and also help your body adjust to burning fats for fuel. All the best!

  4. I am in this stage right now. I got home from work and it hit me that I only had one meal the entire day. This scared me. I weighed myself before I went to bed and I was the same weight from that same morning. There is usually a 4 lb increase but there was nothing. So strange. I wake up with no appetite but I feel fine. I can stomach keto coffee with mct oil and ghee and that will hold me for at least 6 hours. I’ll have a tablespoon of mct oil mid day just because I feel like a need it. I ate 2 grilled chicken thighs that had avocado oil and spices on them, some grass fed cheddar cheese and an organic egg. I had to force myself to get that food down. I’m just going with the flow for now. This has been an interesting journey so far.

    1. Hi Lorrayne, yes just go with the flow and listen to your body. The keto journey is a very interesting one, as you say. I have learned a lot about myself and what works for me. 🙂

  5. Hi. I agree with experience. No real hunger on a ketogenic diet. No real appetite either. I have only two meals a day and bike for 3 hours without getting hungry afterwards.

    The advantage of the diet, the constant high level of energy, is also the disadvantage: if I cannot do sports I get very nervous and irratable. Like a suppressed Jack in box. Moderate intensity biking does not help to deenergize but squats with weights til exhaustion does the trick. And a long cold bath!

  6. Hi , i am experiencing no apetite since a week but have stopped reducing weight too. It’s almost stable and i am I unable to lift weights as i used to before due to cramping and weakness. I have been on keto for almost a month now and lost 6 kgs and have 3 more to go till 1st September. Please suggest how to re start my weight loss again on keto.

  7. I am honestly forcing myself to eat a small salad as we speak, I came upon this article after googling answers as to why I have no appetite and if I should make myself eat or not. So thank you for writing about this topic.
    I am 3 weeks in and have the symptoms that everyone else seems to be posting about. When I began Keto, I was 174 lbs (I’m 5’7″), 42 years old. This morning I weighed in at 158.8 lbs which is the same exact weight I was yesterday morning. I don’t feel the least bit sluggish…in fact I feel like I have more energy than I did before. I do feel though that I have to force myself to eat, regardless of what meal or time of day it is. I’ll hear my stomach growl but I have no hunger sensation.
    I have found conflicting resolutions on how to deal with not feeling hungry on Keto: some articles advise to eat anyways because your body needs to be fed while other articles say it’s ok to not eat. I also try to factor in that I’m drinking 164oz of water every day except yesterday and today I am VERY thirsty. My mouth is very dry so I am drinking about 200oz just to lose that sensation but try to cut myself back in the evenings so I’m not up every few hours running to the bathroom! I had thought it was my water intake that was severely curbing my appetite but after reading all of the other posts…I see that this is normal on Keto. My equation had me at 1200 calories per day but I am struggling to reach 1000 calories. I’m keeping my carb intake under 20 and maintaining my protein levels daily as well. I’ve seen a tremendous weight loss in 3 weeks, being a 42 year old female, so I’m happy with the 16 lb. loss thus far. I only have a few more pounds to go to reach my healthy weight which will hopefully take care of my BMI and cholesterol concerns. I will say that I have never skipped a meal though…I do eat breakfast, lunch and dinner so I’m keeping my counts as well as I should be. And it IS working for me so I don’t plan to change what I’m doing. I just found it very odd that out of the blue, my appetite went away and I’m now making myself eat.

    1. LynnCWhite says: Hi Lynn, so glad to see i’m not alone.. I started Keto 45 days ago… I have only dropped 5 lbs and hoped it would have been more? I have no appetite at all and I can’t even meet my water goals. If you have any thoughts on how I can get my appetite back and my weight off that would be great!

  8. I’ve restarted my keto diet after 2 months of eating total cap and feeling hungry all the time and giving into that hunger which resulted in me gaining about 20 pounds. Then after just 2 days on the keto diet I was definitely craving carbs hard core. I just really wanted a sandwich so I had that and two plates of chips (no self controll) to combat my extremely quick relapse I fasted for about 18 hours and then resumed with my keto diet adding in intermittent fasting of 16-20 hours daily depending on my schedule. After just 3 or 4 days I found when it was time for me to eat I just was not hungry or I’d have one meal and wasn’t hungry again after that. My meals now are extremely healthy and keto friendly chicken cheese spinach eggs but I’m still not hungry and I don’t believe I’m getting anywhere near 1000 caloriea a day. I feel fine and have energy. There’s really no negative side effects other then me worrying that I’m not consuming enough food each day. I’m not sure what to do. I drink plenty of water every day probably around 10 bottles of water. Also I am 27 5 foot 10 and weighed 193 when I started this after only a little over a week I weigh 183 still no appitetite. I’m curious if I need to force my self to eathe more or just let my body do its thing and follow it’s cues.

    1. This usually just passes. In the meantime just carry on making sure that the food you are able to eat is highly nutritious! You could always look up some recipes for fat bombs or similar snacks that are very high in calories, so you can just up those calories a little if you feel you need to but still don’t have an appetite. 🙂

  9. This helped me so much! I am currently doing the keto diet with intermittent fasting so I only have about 8-10 hours a day that I allow myself to eat and honestly I am just not hungry most of the time. I do force myself to eat so that I can hit my macros and it is downright nauseating sometimes. I’m so glad this is normal and will eventually pass. Thank you so much!!

  10. I am finshing up my 3rd week and I’m finding eating my rich, fatty foods are making me sick. I can’t finish dinners, I don’t have much of an appetite but I’m so worried about getting all my calories in. It seems when I’m under calories I gain weight or maybe it’s just normal fluctuation, but I’m finding it really hard to stick to it right now. It’s working so well though, I’ve lost 13 pounds already in 3 weeks and I have big goals before my wedding next October so I need to stick with it! I’m just happy to see this is common and that it will pass!

  11. Thank you for this. I’m nearing the end of my 3rd week and was getting worried about the lack of appetite and nausea. I know my body easily goes into “hoarding” mode when I get too low on calories, so I’m definitely going to try the snack article you posted.

  12. I have been on the Keto diet for 6 weeks now. No appetite for weeks! I feel nauseous to the point of gaging after a couple of bites. In the first 4 weeks I lost 20 lbs. Since I have tetered back and forth a couple of pounds but for the most part have only lost 2-3lbs since. Thinking of meals is a serious chore! I haven’t experienced any cravings for carbs or any fast food. My only cravings are for fruit and other sweet items primarily apples and bananas. Any advise?

    1. This is exactly how I’m feeling. I’m on week 7….however, im not craving sweets or fruits I do not want any kind of food. this is becoming serious.

      1. Same boat. I will be 8 weeks on thursday (today is tuesday) and i have no appetite whatsoever. When i do eat, i almost immediately start feeling nauseated or even cramping in my upper abdomen. I dont feel like its reflux or heartburn and ive looked into gallbladder symptoms…but honestly, im not sure. Ive read a bunch of things that even sound like gallbladder issues, but people have used a supplement. I started a probiotic this week, but i havent really noticed anything different. Sometimes the only way to make the nausea go away is to throw it up. Meaning, the one time i eat, i usually have to purge a few hours later. Im down 21 lbs and i dont feel bad…i just have little to no appetite and when i do eat, it doesnt agree. I see my pcp next week and was going to let her know about this, but im not sure that she’d be much help except for ordering tests that i probably dont need..

  13. I just started 5 days ago and have only eaten about 300 cal for the past 3 days, and that’s forcing myself to eat a string cheese or slice or two of sandwich meat. My husband on the other hand was starving for the first 3-4 weeks.

  14. Thank you for the article. As others, I am three weeks in and struggling to eat. Not even hitting 1,000 calories day for the past five days. (I did have the stomach flu for the 1st 24 hours of this five day period, but it has passed and I should be starving!) Though… I was wondering what I was going to do when all the Christmas goodies started arriving in the office. We received our first box of Sees candy today and I didn’t even open the lid to look and see what I was missing. I must say, this keto thing really is amazing. Have lost 12 pounds in three weeks. A pound a day since this aversion to food wafted into my being.

    Thanks again for the article. If this is not unusual I’ll assume my body is figuring something out. I’ll consider my 559 calories today a win and (assuming) another pound down tomorrow another win!

  15. Hi! Starting my keto journey I weighed 132lbs at 5ft 3in with a goal weight of an athletic 110lbs (this was when I felt the most confident. I previously achieved this by working out 2.5hrs per day, on 1200 calorie diet, over two years).
    I did a 6 day Fat fast (90% calories from fats; limit of 1000 calories per day) to force my body into ketosis quickly.
    On day 1, I was fine (probably feeding off glycogen stores.)
    Day 2 I was hungry ALL day, and needed encouragement to stick with it.
    On day 3 I was nauseated and thought it had to do with my electrolytes, so I replaced half my water intake (1oz for every pound I weigh, daily) with electrolyte water (Propel Berry). Had normal calories, but still felt nauseous.
    Day 4 I tried to force myself to eat, but felt nauseous when I did, and I only got in ~250 calories. I was terrified that I was going to put my body into starvation mode!
    So on day 5, I FORCED myself to eat, but still only achieved 550 calories.
    Day 6 (today 1/5/2018) I had a 400 calorie breakfast, but am not hungry for lunch. I will not make myself eat today.
    Tonight is wing night and I really want to be able to enjoy them!
    Thank you for the website specifically for KEto Women!

  16. Everything you just explained is spot-on
    So now I will stop worrying about it thank you for all the great information it was very helpful

  17. I’m a week in and I have very little appetite. Nausea passed yesterday and today I didn’t want to eat at all. I had a couple bites of everything I made for my boyfriends lunch just to make sure I had something going in. I hit ketosis in 2 days and Keto Flu already. Hoping I will adapt quickly it seems to be the diet for me!

  18. I am so glad that I found your post when searching out my question online. I am just three weeks into Keto and I transitioned into the diet with no problems such as keto flu, mood swings, withdrawals, ..My biggest struggle right now is eating. I am just literally not hungry which means I am not hitting the necessary protein levels. And I’m concerned that that will stall weight loss. I’m hopeful that my appetite will return it because I feel like I’m in a place where I have to force myself to eat which makes me feel horrible about myself mentally and physically.

  19. -sigh- I wish this was the case. I am in week 4 of Keto and still almost ALWAYS hungry no matter what. The catch is I do not crave anything. When I do have any meal I can eat again after 5 minutes an entire meal. I am not sure what is going on. I now drink about 2 liters or more of water per day. I have added electrolytes, more fat (in the form of fat bombs due to work schedule) where I can and still feel ravenous. So I must be doing something wrong. I have no keto flu symptoms, I no longer crave sugar or carbs or really any cravings at all. It feels like my body is confused. My stomach rumbles for food but my mind is completely devoid of any kind of food ideas or wants. Any help or suggestions to help in that regard? Idk if it is because I no longer get a dopamine hit after eating or what but eating now seems like a chore even though my body says its hungry. Also side note: I prepare all my meals for the week sunday nights. I have about 30-40 recipes that I interchange…..why am I hungry but not wanting any kind of food????

    1. This was me so I took a week and played around with adding more protein and it helped. So now my ratios are 77-79 fat 19-20 protein and whatever’s left carbs. It really helped and I’m now in the coveted “not hungry” phase. Take a week and play around with your macros. Everybody is diff and reacts to Keto differently.

  20. I’m only a few days in and already experiencing a very low appetite. I assume it’s because I had a large, protein and fat-filled breakfast and I’m used to either a slice of toast with peanut butter or a banana as my first meal of the day. It is now supper time and I don’t even want to think about food. Although if someone gave me a chocolate bar and said I had to eat it, I don’t think I would turn it down. Haha. Normal?

  21. I am beginning week 3 on Keto and I have a very low appetite. When I do get hungry I don’t want anymore after around 3 bites. I was getting worried because I thought this would slow down my metabolism. It’s good to know that this is normal.

  22. I have been on the ketogeniva diet for 3 weeks and I have lost 15 pounds. My only complaints are freezing all the time, muscle aches ( I have started exercising at least 5 days a week though), and starting today absolutely no appetite. I tried forcing myself to eat and the food tasted awful to me. I know the food was fine, my family loved it. After forcing myself to eat just a small amount I felt nauseous. Knowing this could be normal does make me feel better. This to will pass!

  23. I am only a week in and already have no appetite and I want to throw up at the thought of food, almost like morning sickness. But when I really feel like I wanna throw up is after a hard work out. Is that normal?

    1. That’s due to low blood sugar, and it just means your body hasn’t adapted to primarily burning fats for energy yet. 🙂

  24. Yes, definitely. I have completed stage one and according to my Keto sticks, I am Keto but I cannot eat. I noticed it started yesterday and today it is really bad. I mean my appetite has already been decreasing starting in week two but now in week three, I can only take a few bites and I am full on my first meal and it is after 6:00pm. I literally cannot eat. I am so glad I came across your article. It is describing exactly what I am going through and I am looking forward to the third stage. Thank you. I was searching for an answer to what is happening to me.

  25. I haven’t been hungry since about week 2 of keto. I’m at about week 7 now and still don’t find food appealing. I wake up a little hungry but bulletproof coffee tends to cure that and from that point on, not much interests me. That’s not to say I don’t eat but like you mentioned, two mouthfuls and I’m done. But I haven’t lost any weight in the last three weeks which is literally doing my head in. Im on my feet all day for work (and I work very long hours) and although I’m probably not getting enough water/electrolytes I still feel like something should be changing! It’s just so agonisingly frustrating. I love keto. It’s made a huge difference to my energy levels. I went from being addicted to sugar and carbs go “get through” to having my own energy again. But I’m fat and I really don’t want to be this way anymore! Seeing others lose quickly just makes me feel like something is wrong.

  26. I feel like you explained the stages I’ve gone throug to a Tee! I’m going on 4 weeks and today I actually forced myself to meet at least 1200cals but didn’t want it.

  27. Oh my gosh! Yes!! I am in the 2nd stage.. I thought I was the only one to experience the loss in appetite and feeling nauseous after a few bites. I’m happy to hear this will pass, I’ve asked others that I know if they experiencenced this and they said no.. So I was concerned I was doing it wrong. Thank you for this post. The first stage you nailed it! Omg I thought I would starve to death lol and then I couldnt get enough food it seemed! Now the no appetite has hit and adveraging about 700-800 calories a day! I’ve dropped 22 pounds in a month and 4 days!! Its crazy but I feel good. Anyways thanks again

  28. It’s helpful to see that others are having the same issues. I’m on month three and still have no appetite. I eat a hard boiled egg if I feel the need to eat or drink a Bulletproof coffee. I don’t worry about not getting enough calories. I feel like when my body needs them it will let me know. I don’t have the gut pains like I did when I was doing carbs and I don’t even think about sweets. Before Keto I would start planning my dessert before I was done with my meal and I was hungry constantly. The weight loss has been steady but slow. 1 pound a week or so. This past week I dropped 5 pounds. I’m 5ft 2in. My goal is 110 pounds. I started at 140 and have lost 26 pounds so I’m seeing my goal weight within reach now. It’s amazing how much better I feel and how much better my skin looks. Even at 57 my skin is super soft now. I can’t get over that I don’t have that undefined feeling sick all the time feeling that I had on carbs. I will never go back.

  29. Great article, thank you. I’m at the no appetite phase although I’m not losing as fast as I thought I would. I don’t feel nauseous at all though. Just wish the weight would fall off faster (and yes I exercise daily).

  30. I sure could use some help. I’m 56 and 5’4 have been on keto since December. I’ve always had weight fluctuations but have never been over by 20 or 30 lbs. So when I started I was 135. I had been having digestive issues with sugars so I knew I needed to go off sugar. That’s when I started researching. I didn’t go in to it to lose weight. Although it was a nice side effect. I started noticing my clothes fitting loser pretty quick. I also had the same issues with not being hungry as others have stated. But I understood the science behind it and just kept on. I’ve never been obsessed with the scale but started weighing myself at about 127. The weight was melting off. Every day it seemed I was down another lb. About 3 weeks ago I was 120. Now I’m 110. I can’t stop losing. I caught a stomach bug last week and have been nauseous since Thursday. I have no apitite. I’ve tried everything I know and not sure how to overcome this. I need to eat to gain weight or at least maintain but nothing looks or smells good, much less I can’t chew anything. It’s almost like I’ve lost my taste buds. It’s hard when you can only get 300 or 400 cals a day. This is definitely not good and I don’t want to end up in the hospital. I did hire a nutritionist but don’t see her till tomorrow. What amazes me is that I never really noticed how few calories are in nutritional foods. You have to eat a lot of food to get 1500 or 1800 cals. a day. That is what we need to maintain. When I think back I probably haven’t gotten more than 1000 a day since I started for the most part. Sometimes less. I think one thing that experts in keto should teach is calorie counting. It’s so important to have enough nutrition and 500 to 800 cals a day just isn’t enough, and sure isn’t enough to maintain. And if you’re doing intermittent fasting, which I was, youre only eating a couple times a day. It’s very hard to get all those cals in 2 meals. I have been juicing green veggies 2x a day but there might be 100 cals in a glass. So that with a salad of lunch and meat and vegetables for dinner which I could hardly get down because I was still full from lunch and there you have it. Because all it takes is to get sick and things start going very wrong very fast.
    It just sucks that after all this I’m going to have to pollute my body with the crap that I just got out just to be able to eat anything. But nothing sweet. Yuck! My taste buds have definitely changed. And the juicing is starting to get to me as well. The last couple days I’ve only had a half a glass. I know I need the nutrition.
    So, after my half hour of writing this I kind of feel better. I’m going to make some grits, wash my hair and try to go to work. I’ve pretty much been in bed since Friday.
    Any advise will be greatly appreciated. God Bless.

    1. Hi there, as your loss of appetite has continued for longer than normal and you are losing weight fast (without wanting to!) I think it’s a great idea to see your nutritionist. I don’t know whether you have been doing carb up meals, but it sounds to me like this might help. Adding a sweet potato, some carrots or other root veg to your evening meal a couple of times a week can help to balance you and get those calories in.

      You’re quite right about needing to eat a lot of food to get those calories in! This is why it’s so important for women to not be scared of eating fat on keto. And I get quite a lot of emails from women who are struggling and then I find they are trying to restrict calories as well as eating keto. No! Eat eat eat! As it sounds like you’re quite aware of, getting in lots of nutrition is key.

      I would love to be able to offer more advice but as you have lost a lot of weight in a short time and are finding it hard to eat, I think it’s best for me to step back and let your nutritionist really get to grips with your diet in detail and provide professional advice.

      I’d love to hear what plan of action you have after talking to her/him, so do keep us updated. 🙂

      1. Thank you. I I think my mistake was in addition to the diet I was also doing the intermittent fasting which means I just wasn’t getting enough food. I was going on the principles of the insulin surges. I have spoken to a nutritionist and she is working up a plan for me which I’m supposed to have tomorrow. I’ve been able to eat a little but it’s still hard right now to get enough calories. But I’m working on it.

  31. Like one other commenter, I am having the opposite problem. I’m 3.5 weeks in and have experienced no reduction in appetite. When I eat, I do feel very full, but I’m hungry just as quickly as I normally would be- anywhere from 2-3 hours later.

    I did keto once before approximately two years ago and I instantly noticed an appetite suppression. This time around, I have been doing it more strictly, cooking keto recipes I’ve found online, eating enough fat, drinking a lot of water, but… my appetite remains the same.

    I did buy keto sticks and they do indicate that I’ve been in ketosis since the beginning of week 2. But unfortunately, I think my appetite might be preventing me from losing weight. I’ve only lost 1.5 pounds so far. I’ve tried logging my macros in MFP and I’m definitely eating enough fat- and probably too much since I’m always hungry.

    Any ideas why my appetite hasn’t changed? Maybe I haven’t adjusted yet?

  32. I am experiencing this only at day 2 of my re-start of Keto eating. A little history- I have done keto twice before and lost 50lbs the first time and 75 lbs the second time- each time gaining the weight back around the holidays. This time I am determined to make it a lifestyle change and adapt the holidays around my lifestyle instead of “cheating” around the holidays and gaining the weight back. But I thought it was weird that I am experiencing this only on day 2… is this because my body is familiar and already “keto adapted” or familiar with Keto adaption so I am just experiencing the phases more quickly this time?

  33. I am only on day three, however, I cannot seem to eat anything apart from snacking on dark chocolate 85% and maybe two table spoons of no sugar peanut butter. Is this okay? Once I eat I get nausea. Am worried I might be snacking so much on peanut and dark chocolate as this is the only food I can eat. Also I go to gym everyday for an hr. Is this dangerous on Keto??

  34. I have been on keto for two weeks and what you say is absolutely true. First week I was hungry all the time and the last few days I have to make myself eat and have been eating smaller meals . So thanks for the insight and I’ll be waiting for that third phase .

  35. I started keto this week. I only eat one meal a day and have no desire to eat again. I pretty much hit all my macros in one meal. I have no idea if I am getting into ketosis, but I know hours after I eat even 6 or more hours later I have no desire to eat!!

  36. Wow thanks so much for this article…i am only 2 weeks into the keto diet buy my loss of appetite is epic and the only thing I crave is boiled eggs…your words are reassuring.

  37. I’m just over one week into keto, and I’m also doing intermittent fasting. I basically have no appetite at this point (whereas before keto I over ate drastically and constantly thought about eating). While it is nice to not be addicted to eating, it’s hard trying to get anything into me. I get bad hunger pains in my stomach and feel nauseated, but all food turns me at this point, even foods I normally love. Hopefully this phase will pass!

  38. On Keto for only 6 days so sick but better now but now no appetite after lunch. Is this normal after such a short time?

    1. Omg! By day 5 (yesterday) I was so sick and nauseous that I couldn’t eat, sleep, etc… I was dry heaving as I believed I needed to vomit but nothing came up. I thought I damaged my body somehow. Today was better but I keep getting some bouts of nausea.
      I am not overweight and never have been. I’ve always been underweight. I decided to give this a try for a few reasons as I have with other diets. Generally and consistently, I eat clean and organically but I read so much about keto and it made sense to me.
      I’m a carboholic but my body burns them up. I’m going to get through another week and see what happens.
      Most likely, I’ll do a cycling keto diet.

  39. Im in phase 2. I have to make myself eat just because i know i need to. A boiled egg with mayo fills me up. After that im good for hours. I thought there was something wrong with me. Thanks for sharing.

  40. I am experiencing no appetite now. The last two days I didn’t eat. I just wasn’t hungry. . I managed breakfast this morning… I may pass on dinner

  41. week 7 and still no appetite!! And that goes for both myself n hubby. We have kept our carbs well under 20 and I’m beginning to get concerned. Breakfast I can tolerate but after that no desire for food. Hubby made my favorite pork chops and I didn’t touch them. Any ideas? Thank you.

    1. Hi Maryann I’m exactly same I’m on day 9 I’ve been in ketosis for 7 of those, at the start I was hungry but since day 6 I’m having to force myself to eat. I have 3 boiled eggs with butter for breakfast and been having handful of nuts, maybe a slice of cheese or trying to have a few spoons of coconut oil to try keep fat levels up. Maybe try snacking on high fat nibbles. Not weighed myself yet going to wait until 2 weeks in. Have u lost much?

  42. I’m so glad to have found this! I’m just over 2 weeks into keto and I’ve had no appetite the past week and even felt a bit nauseous when I attempt to eat. Thank you!

    1. So glad I found this site. It is my second week on Keto. Appetite completely gone. Some nausea when attempting to eat certain foods. Can drink Broth and a small meal in the eve. But I am okay now that I read everyone posts.

  43. Keto has taught me I had a love affair with food and now we are divorced. This to me is a hard diet, it makes me sick eatting all this fat, I am in Ketosis, tested for this. I don’t eat much. I usually have a keto smoothie in the AM to get my fat in, then my stomach gets upset, lunch is a struggle, sometimes just some cheese, cucumber and a couple deviled eggs, not even liking or wanting it. I try to keep pushing the water. I’m down 10 pounds in 17 days.

  44. Hello…Thank you so much for this article that you have posted. I am in my third week of the Keto diet and find myself not having much of an appetite as well. However, sometimes I can feel hungry but I feel a little bloated at the same time and that makes me not want to eat. Has anyone experienced this; where you feel hungry but accompanied with a feeling of bloating? I am glad to see that the no appetite it is normal and it to shall pass and that I just need to be patient with it. Thank you for all your tips that you have given us.

    1. I too have felt bloated with no appetite after 5 wks. on keto. I think I need to drink more water. I drink 50-68 oz./day.

  45. Started keto on 5/8. Type 2 diabetic 8 yrs. and some meds had bad side effects, so after dropping one of them, started keto. Today is 6/14 it’s working, my blood sugar numbers are down quite a bit, have lost 10 lbs. so far, but recently my appetite is gone. In the last few days, I’ve been so turned off by food that I take a few bites and am done. Don’t even care for the taste or smell. Can go hours without thinking about eating. Curious if my body burns my stored excess fat during this time?

  46. Anyone else find it a little concerning that this thread is full of people with issues with no appetite and yet essentially no one that has actually gotten through it and felt better with return of appetite? I don’t understand why people find this comforting it’s just everyone saying they have no appetite whether after 2 days or 45 days! One would assume the people in the comments either gave up or had symptoms continue since no one is coming back saying all is well. I would love to hear from some people who really got through this…no reason to slog along for months feeling miserable if this isn’t going to pass.

  47. I’m on day 10 of my keto, and I’m most definitely experiencing the no appetite. I was a bit worried, as my goal is to maintain weight, gain muscle, but lose fat. I’m struggling to eat even 1500 calories a day, now. (I’m 39, 5’11”, 179lbs, lift weights 4x a week). I was getting very scared cause now I’m only eating two full meals a day. (before keto, I was eating 3 meals plus 4 snacks, and if I didn’t get all of them, I was ravished!). Glad to know this will pass! I WAS force-feeding myself, trying to get my needed calories in (and felt sick doing that), but now I’ll just eat when hungry and wait for the appetite to return in a week or so. Thanks for the article!

  48. I’m at the phase where I’m not hungry. I did go through the starving stage. Cant wait for the consistent energy phase. Still having alot of electrolyte issues.

  49. Thank you for this article! I was starting to get a little scared about my appetite! Which in this moment at time is none! Glad to know this part of the process. I was thinking of starting a protein shake in fear that I was not getting enough nutrients. For now I will not! What I have love most about this way of life is that it is all natural and I would live to stick with that!

  50. I’m on day 8. I have lost my excitement for food and this makes me sad. Yesterday I was completely miserable. Starving and the thought of anything I could eat turned my stomach. I’m actually dreading getting hungry again after lunch today and don’t want to deal with dinner at all.

  51. I am on day 6…4 and a half pounds down…i had diarrhea for the last two days…..and now have no appetite at all. This has never happened to yes i was concerned. I woke up hungry this morning and had a bullet coffee which satisfied me…at noon i fixed lunch and found i couldnt finish it. It is now 8:30 pm..and i cant stomach the idea of eating anything..i just want to drink water.this is very strange to cravings for carbs or sweets and i was a huge offender.

  52. I started Keto May 13, 2018. I lost my appetite about 2 weeks in, and I still don’t have one most of the time. I’ll think I will be able to eat, but after a couple bites I just can’t eat anymore. I was on 5 medications for BP and 2 for asthma that I no longer am taking. You mentioned that when you body is healing, you may experience a lack of hunger. Just wondering if my body is going through a more intense healing due to the medications Also, I suffered a life threatening infection from a dog bite on March 21, 2018. I also had bacteria in my bone from the tooth. I was pretty sick when I started Keto. What are your thoughts?
    FYI- I had lost 25 lbs from January to the time of the accident March 21st. I lost an additional 20 lbs due to the accident. I have now lost 35 lbs since starting Keto, for a total loss of 80 lbs this year. I have 120 lbs more to lose. I have been in Ketosis since May 20th.

    1. I’m on week 10 of Keto and this complete lack of appetite started for me this week. I’m not nauseated- just have no appetite. I was 128 pounds when I started and am now 118. I’m not really looking to lose a lot more weight. I have been making myself eat two meals per day. Wondering if I need to add some carbs (fruit) to bring back my appetite and curb the weight loss.

  53. I found my appetite came back after I started to increase my electrolyte in take. Once I got that in check I was able to eat with out feeling sick. Granted I eat about a 1/4 of what I used to, but as long as I am eating Im not worried.

  54. I’ve been doing low carb for 4 days now. My days start at 430am and I go down at about 10pm. Yesterday I barely hit 700kcals. I did 2 fat bombs, spinach salad with filet, bacon and bleu cheese, some pork rinds, and I could go hours. I made myself eat. I did get a little hungry so I had some tilapia with hot sauce… I haven’t really had an adverse side effects yet. No nausea, good mood, never really got cravings… is this normal? I’m waiting for the other foot to drop because it seems too good to be true. I’ve been tracking everything I eat. I dont overdo the protein, have not went over my allotted carbs. It seems too good to be true, again.
    I went into this challenge with the mind that I’m not going to allow myself to get hungry so if I started to feel hungry I would eat. I want going to count calories at first, I just wanted to get over the dreaded, forecasted keto flu and then I’d be more mindful of my meals after I got off carbs for awhile. I’m not struggling and its worrying me. Weird, right?

  55. I’ve only been doing keto for about 3 weeks and I am at the point where as I am not hungry at all just drinking lots of water because my mouth is dry and I can’t seem to get enough to drink is that normal

  56. Its been 5 days for me in keto diet and now i dont feel like eating a lot. So have shifted to intermittent fasting for a week. Still i dont feel like eating. Is it normal?

  57. Thank you! I’ve been looking for some experience-based information like this – specifically, a kind of timeline regarding appetite changes, as I’m definitely in stage 2. During stage one I was only really experiencing the hunger for fatty foods; I would only fancy some carbs when I saw something to trigger a carb desire, but I was grabbing nuts and cheese throughout the night when I woke up (frequently) to go to the loo. Then yesterday the absence of appetite began to develop. Lunch yesterday was postponed a couple of hours as a result. Same again today, and now I have no appetite for dinner and contemplating skipping it. It’s great! I moved from intermittent fasting to keto and planned to go back and combine the two, but was intending to think about this when I was confidently keto-adapted. I’m only just over 2 weeks in so I guess I’m getting somewhere now!
    Thanks for your post!

  58. Can anyone please help me. I am 2wks on the Keto plan but I find I pick up weight. I record my meals daily to track calories, carbs etc. I had several surgeries after a car accident so I’m not very active, I am also on antidepressants.
    I gave up rice, potatoes, pasta and bread years ago and real careful with sugar, I generally follow a Mediterranean diet but mow I am adding more fat so what am I doing wrong

  59. Hi. I’ve started my Keto diet on 7th Jan 2019 and after 3 weeks, I lose my appetite and it scares me since I don’t eat enough calories and my weight is stagning. I’m afraid that I will fail to lose weight for good this time. But after rading your article I can relax and find out that it is normal to go through this phase. Thank you so much.

  60. Hi I been on keto for about a week and I have no Appetite. All I seem to want to do is have my keti shake and I’m good good to go for the whole day. Sometimes I have to shakes for the entire day is this normal

  61. I’m a man and not at all trained in the health sciences.

    However I think it’s valuable for me to comment because I too completely lost my appetite and had a difficult time eating 1,000 calories a day. My normal bread and butter (literally) is about 3,500 calories plus.

    Naturally I became concerned and so got off keto. However because I have a lot of weight to lose, I didn’t simply want to give up.

    So this time I added much more protein. I realized previously I was getting virtually non protein. It was mostly salads with plenty of oil and avocados but I had no tofu, chicken, beef, edameme, etc. at all. I was getting virtually no protein.

    After adding about 6 oz of meat my appetite has returned to about 80% of its normal level. When it’s time to eat I’m craving that salad and it’s deeply satisfying. Then I’m not hungry until dinner, but since I’m doing OMAD I can’t eat dinner. However the hunger is not as bad as it would be doing the SAD diet but it’s definitely there.

    I’m much more comfortable having hunger since I considered it not a good sign to have no hunger, as that was highly unusual for me and no, I am not trained in medicine but I can’t imagine ZERO hunger is good for you. So try experimenting with adding at least 60g protein a day. (But not too much since that’s not keto).

    In any case I absolutely recommend seeing a doctor first to ensure there’s no complications for you personally and have them monitor your vitals and bloods

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