This subject has finally become enough of a problem that it is drawing national attention from one of the most respected voices in medicine. Maybe, in the future, topics such as this will no longer need discussion. Sorting out these two categories relies on the knowledge of cues to possible motivation of the authors. The most important factor is profit. Most claims concerned with making money offer miracle cures.
Any miracle cure is invalid.
Only exercise and healthy eating can produce effective, long-term results. If the information appears correct, but some doubt still exists, consult the references. If the references are accredited and recent, with no contradictory information found, the claims should be valid. However, consulting a health professional before trying a new product or program ensures the safety of one's health. Recently, JAMA has taken steps to possibly control the amount of negative information on the Internet.