Let's admit it, we've all been tempted by weight-loss advertisements that promise quick-fix solutions to jelly bellies and podgy thighs. You know the kind of thing: 'Magic diet pill' or 'Melts fat away' and 'Lose weight without dieting or exercise'.
The FDA scientists claim dozens of products touted as natural or herbal dietary supplements contain potentially dangerous compounds that haven't been tested properly or even hidden prescription drugs. Some, for instance, were found to contain a prescription drug that was banned because it caused heart problems and strokes.
And while many of these products are marketed in the US and other countries outside of the UK and Europe, thanks to the internet you can buy them no matter where in the world you live.
Banning dodgy diet pills is a huge task, however, the experts say. So they've issued advice to dieters, including being wary of any promises such as 'lose 10lb in a week, words such as 'guaranteed' or 'scientific breakthrough', and products that are marketed via mass emails.
Ask yourself if it sounds too good to be true, the experts also advice. If the claims for a diet product seem exaggerated or unrealistic, if they are described as 'quick and effective' or 'totally safe' or similar, steer well clear.
Have you ever tried slimming pills that have promised quick and easy weight gain? Did they work?