Fasting is not something most people are familiar with, so it comes off as scary and extreme to most people who are just starting out. Yours is definitely one o

Fasting is not something most people are familiar with, so it comes off as scary and extreme to most people who are just starting out. Yours is definitely one of the most common reactions people doing it run into. Assuming no pre-existing conditions, your body actually keeps your blood sugar in the right healthy range during fasting. We've evolved to expect to go without food for good chunks of time, which is why we even go into ketosis in the first place. It's not good or bad for you, it's just an alternate state for your body to be in that taps into the battery's reserves instead of the readily available energy coming from nutrition.