what are some things that diet pills contain ?!

Best Answer - Chosen by Voters

A substantial portion of the harmful additives in diet pills have been banned primarily because they cause liver, circulatory, and heart damage and in some cases death. Ephedrine was a biggie. Now ephedra. Most amphetamines (speed) have been banned.
Unfortunately under the current laws the FDA does not approve supplements but can ban them if they cause harm.
So anyone buying 99% of the over the counter diet pills is paying to be a human guinea pig.
The big push these days is "thermogenic" fat burners. These contain exotic plant extracts. Most of them boil down to caffeine, amphetamine derivatives, and various pepper plant extracts.
Acai, maqui, goji, moyo, african mango, hoodia, and fruta planta are the latest "exotics".
Alli is the only FDA approved over the counter weight loss pill and it prevents fat absoption, it doesn't mess with metabolism.
Most diet pills containing caffeine and other foreign ingredients can have the following side effects:

Arrhythmia - irregular heartbeat
Heart complications
Kidney problems
Unexplained headaches and dizziness
Excessive fatigue
Loss of appetite
Restlessness, anxiety
Nausea, vomiting
Seizures

A healthy diet and exercise work every time.