Staying well-hydrated and adding a little extra salt to your food can help alleviate some of these symptoms.
The rumors you may have heard are true. During the first weeks of a ketogenic diet, people often report feeling different than they normally do—and not in a good way. Commonly reported symptoms include constipation, fatigue, headaches, lightheadedness, and an upset stomach. Thus, the “entry phase” of starting a ketogenic diet has been deemed the “keto flu.” Staying well-hydrated and adding a little extra salt to your food can help alleviate some of these symptoms. The good news is that this phase is temporary, and once you’ve adapted, these symptoms should disappear.