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Symptoms of Being in Ketosis

Now that I’m in deep ketosis due to the fat fast diet, I’m having the classic symptoms associated with burning my body fat for energy.

What are the Symptoms of Ketosis?

Keto stick showing deep ketosis.

Everyone’s body is different and you may, or may not, experience negative symptoms of being in ketosis. You may have one or two of them, or maybe all of them. The one thing almost everyone will get from ketosis is a stable blood sugar and fast weight loss.

Here are some of the common symptoms of ketosis…

Extremely dry mouth and/or throat:

The back of my throat is super dry and I’m even drinking a ton a water everyday. Sometimes it’s so dry that it is kind of hard to swallow, especially when I wake up in the morning. If you don’t mind chewing a piece of sugar free gum, it helps.


Going to the bathroom a lot:

I find I’m peeing every hour and it’s not a little bit either! I’m just thankful that this hourly routine lets up during the night when I’m sleeping.


Interesting smelling pee:

Interesting is the only way I can describe it. It is due to the acetoacetate being given off in your pee while in ketosis.



During the initial stages of going into ketosis, some people experience headaches. I did slightly on day 2 and 3 of the fat fast. This is due to withdrawal from carbohydrates – some people will experience this worse than others if they have been eating large amounts of carbs before starting some type of low carb diet.


Feeling nauseated:

On day 3 after I ate the Alfredo and bacon noodles, my stomach felt icky and I was a bit nauseated  This lasted for a few hours before it went away. It could have been the shirataki noodles, since I’ve never had them before, or it could have been the ketosis… I’m not sure. But others have reported feeling nauseated when first being in deep ketosis as well. Up to now, this is the only time I had this symptom, so it may well have been the noodles in my case.


Funny tasting mouth:

Some people describe this as a metallic taste, but I don’t think of it that way. I can’t really describe the taste, just that it’s a different, weird taste. For me, it’s not overwhelming – but it is noticeable.


Hot Flashes or Feeling Hot:

This started on day 2 of the fat fast for me. About 30 minutes after I eat a “meal” I get really hot. This hotness resembles a hot flash (how well I know about these, I had a hysterectomy 13 years ago and went through a ton of hot flashes about 7 years ago). I don’t notice these after I eat a smaller meal such as 1/4 cup of macadamia nuts, or the chocolate mousse though.


Decreased appetite:

Being in ketosis naturally curbs your appetite and cravings, a big bonus! You may even forget to eat if your busy because you just don’t feel hungry.


Energy boost:

I started experiencing this energy boost right away. I think it’s due to my blood sugar normalizing – no more carb highs and crashes.


Sound sleep:

Many people report being able to sleep really good and sound, waking up refreshed and ready to go. I don’t get much sleep each night, so I usually sleep sound anyway because by the time I get to bed I’m totally exhausted.


Water cravings:

I definitely have this ketosis symptom! I’ve been drinking a ton of water and it has helped me during the times when I was hungry, but had to wait a bit before eating another “meal” so that I could equally space out my eating through the day while doing the fat fast.


Fast weight loss:

Besides the positive effects of being on a ketosis inducing diet, the fast weight loss is the cherry on top! Losing weight while being in ketosis is the fastest and most effective way to lose weight.


If you are personally experiencing a symptom different from the ones listed above, please leave a comment and share it with us!


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1 comment

  1. cris September 15, 2014 at 4:47 pm Reply

    I feel better than i have had in about 8 years of my life. I have been suffering with chronic pain due to 4 herniated disks. it turns out, many doctors called it also fibromyalgia.
    by removing all simple carbs from my diet, in about 2-3 days i had no pain, meaning NO pain, no need for pain meds and muscle relaxant. the sugar was causing so much inflammation and creating this vicious cycle. yesterday i wen kayaking for the first time in years and today i dont even feel the post work out tight muscle feeling. I will never touch sugar again and will control what goes in my mouth for the rest of my body. from all my symptoms I could tell I was pre-diabetic despite NORMAL fasting blood test results. this is for me a new way of life, a way to live healthy and pain free.

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