It is important to acknowledge that every unhealthy diet can have side effects, like acidosis, fatigue, depression…So never overdo it, never take actions too promptly, the body likes it smooth ;).
There is loads to say about diet pills. Sadly, usually they aren’t good for a healthy weight loss.. even worse: most of the diet pills are very bad for your body.
While in general, one should try not to generalise, now I’d say: don’t do it. Diet pills are unhealthy, they should only be used in life-or-death-scenarios. So step away from the diet pills and put your hands in the air!