Fasting is a real thing

Ramadan

Lent

And just straight up fasting or intermittent fasting

It’s healthy too. Just dont, if youre pregnant, a child, under nourished, under weight, sick etc etc

And during a fast… feel bad? Just eat.

People should be wary of voluntarily fasting for more than a day or two. Can be fine, but can also lead to lasting complications, may be too late by the time you feel bad. Ramadan/etc usually only involve intermittent fasting spread out over a period of time.