Keto flu last
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How Long Will It Last?

Luckily, the uncomfortable symptoms of the keto flu only last about a week for most people.

However, some people may have a more difficult time adapting to this high-fat, low-carb diet.

For these individuals, symptoms may last several weeks.

Fortunately, these symptoms will gradually decrease as your body gets used to converting ketones into energy.

While keto-flu symptoms are commonly reported by those shifting to a ketogenic diet, if you are feeling particularly unwell and experiencing symptoms like prolonged diarrhea, fever or vomiting, it’s best to contact your doctor to rule out other causes.


Some people may experience keto-flu symptoms due to genetics, electrolyte loss, dehydration and carbohydrate withdrawal. The keto flu usually lasts for about a week, but some may experience symptoms for over a month.

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