The National Institutes of Health warn that appetite suppressionappetite suppressionAn anorectic or anorexic is a drug which reduces appetite, resulting in lower food consumption, leading to weight loss. By contrast, an appetite stimulant is referred to as orexigenic.https://en.wikipedia.org › wiki › AnorecticAnorectic - Wikipedia, starvation diets and use of laxatives lead to water and weight loss and the weight comes back when normal eating is resumed. They also warn that pills, powders and herbs promising a quick and easy fix are frauds and really are too good to be true.