Expect some side effects

Despite all of the benefits of a ketogenic diet (such as weight loss), there is one major negative effect to be aware of: the keto flu. Keto flu affects a small percentage of people, but those who do might feel awful.

The keto flu is a term used to describe the period after the start of a keto when your body adjusts to using fat for energy. You may feel exceedingly lethargic in your limbs for the first week or ten days. It may seem hard to walk upstairs. It's possible that you'll have mental fog, muscle soreness, and indigestion, among other unpleasant symptoms. Because of the reduction in fiber consumption, keto often causes constipation or diarrhea. If keto flu symptoms appear, drink plenty of water and supplement with electrolytes (sodium and potassium) to help your body recover as fast as possible.