The keto flu is a group of symptoms like fatigue, headaches, and dizziness that can happen in the first few days. It usually lasts a few days to a week and improves with hydration and electrolytes.

This is often caused by low electrolytes, not eating enough, or your body still adjusting to burning fat instead of carbs.

Common reasons include hidden carbs, overeating high-fat foods, too many snacks, or not enough consistency.

Yes, especially in the beginning. Cravings usually come from habit, low electrolytes, or not eating enough protein.

Some people experience constipation or stomach changes at first. This usually improves with hydration, fiber from vegetables, and better food choices.