The pushers say it will work with diet and exercise.

Guess what..

Diet and exercise alone will work and will not empty your wallet.

It is simple.

Weight gain = calories eaten > calories used.

Weight loss = calories eaten < calories used.

It does not matter where the calories come from the standpoint
of energy budget.

Go to your local library and check out the "Shangri La Diet" –
a NYT bestseller by Seth Roberts. It is not a "real" diet per se.
It shows a healthy way to suppress your appetite.