[shekharshan]

I fast regularly and have a 5-6 hour eating window. During that window I just cannot eat more than 1500 calories. If typical caloric reduction can trigger starvation type response in the body, why does it not happen when we reduce calories during fasting?

[voisin]

Caloric restriction does not lead to an increase in Human Growth Hormone. There are a bunch of other hormonal changes that occur when the caloric input is zero, versus when it is something. That’s why study after study shows fasting is superior to caloric restriction.

[shekharshan]

Thanks @voisin, this is very helpful.