"Sellers of these supplements could argue that their products help with weight loss by blocking the intake of fat or carbohydrates, curb appetite, or speed up metabolism, the National Institutes of Health says.
Best of all, they do little for Their waist, and in the worst case, severely harms them.
Unlike prescription drug manufacturers, diet pills are largely unregulated: they do not need to prove that their cocktails of herbs and minerals actually work, and they alone are responsible for ensuring that their supplements are safe However, the United States Food and Drug Administration (FDA) sometimes resorts to taking supplements out of the market, or forcing manufacturers to change their labeling if supplements make no claims about the effectiveness of their product and there is no evidence gives, that support their claims, or when a product is considered unsafe.
For example, the FDA withdrew Ephedra in 2004. The plant product can suppress appetite and increase calorie burning in the body, stimulate the nervous system and lead to weight loss, but it is also deadly dangerous and can lead to nausea, vomiting, anxiety, mood swings, hypertension, cardiac arrhythmias, strokes, seizures, heart attack and death , Diet pills can also interact with other medications that you take in a strange way. Therefore, it is important that you consult your doctor before you start taking it.