Over-the-counter weight loss supplements typically contain
a. antidepressants.
b. diuretics.
c. vitamins.
d. minerals.

They usually contain a diuretic.  A diuretic increases the amount of water lost from the body.  Since the body is made up of 80% water, the person will see some weight loss.  Once the person stops taking the supplement the weight will be regained quickly.

Whats important is to eat healthy food to prevent heart disease. another why not to get heart disease is to always exercise in a timely manner. lastly, always stay active and go to the doctor for checkups just in case.