The promoter cites testimonials and anecdotes from satisfied customers to support claims. Computers used for such tests are programmed to recommend supplements for virtually everyone, regardless of their symptoms or medical condition. The promoter claims that the product will make weight loss easy. Beware of this claim. Losing weight requires the self-discipline to eat less and exercise more.
Legitimate scientists share their knowledge so that their peers can review their data.
Results of studies on bona fide treatments are reported first in medical journals. If information ads for a treatment appear only via these other means it's probably because the treatment doesn't pass scientific muster. If you think you've been taken in by a quack treatment, speak out. If you want to take legal action against a quack, you can get help from the National Council Against Health Fraud. This organization can refer you to an experienced lawyer.