What are the potential side effects of fasting?

These side-effects only happen during the transition phase. If you push through it, you can receive some pretty amazing health benefits. Also, if you start the ketogenic diet and intermittent fasting correctly, these symptoms shouldn't be a big problem.

Potential Side Effects of Intermittent Fasting: 

1. Spike of uric acid

2. You're cold

3. Moodiness

4. Headaches

5. Increased stomach acid

6. Feeling nauseated when you eat

7. Fainting (only if you do prolonged fasting too quickly) 

8. Hair loss