The Minnesota experiment that was led by Ancel Keys, focused on how hunger and starvation affect humans.

It is pretty interesting and worth a read to fully understand why humans tend to gain back more weight when they diet excessively.

Many in the study reported eating excessively after they left Minnesota; Jasper Garner described it as a “year-long cavity” that needed to be filled.

No amount of food would suffice - even though they become physically sick.

The body memory of hunger was traumatic and the overcompensation in the time thereafter overrode any amount of self-discplinine whatsoever.

Basically, the conclusion is - do not starve yourself.

You will only get fatter - which is usually what most people are scared of in the first place, thus why they start obsessively restricting.

Dieting is not the solution though.