Diet/Weight loss pills have been one of the most common and highly marketed products in the fitness and health industry. As many companies claim to have a magic pill that can cure all fat... Unfortunately, it's not true, but here's what is!
The main active ingredient in most weight loss and diet pills is caffeine. Because it is one of the only proven supplements in the weight-loss market (there will be a whole chapter on caffeine for you!) and is the best weight loss compound out there backed by 100s of human studies.
Whereas most compounds that are found in fad diet pills are marketing BS. Either they have minimal amounts of brand-backed studies (meaning the brand paid for the results) or have only been tested on rats/other animals.
And I don't know about you, but the only rat I am is a gym rat and won't be putting something in my body that isn't lab tested and scientifically proven to help me shed body fat!