Food Politics has another article on supplements suggesting that some claims are misleading and deceptive.
While I am a great believer in natural healing and the use of supplements and herbs, I am also a great believer in making sure someone who is knowledgeable about the use of the particular supplement or herb is giving the information. Supplements are generally considered safe because we think of them as food. On the other hand, food is a powerful medicine. Why do we constantly forget that too much of a good medicine can be bad for us? Supplements are just the same.
Each of our bodies needs certain things in certain amounts. We want balance. It is okay sometimes to take too much or perhaps to get too little (how much is too much and too little depends upon the thing in question). However, taking too much or getting too little over the long haul is a bad thing.
A trained practitioner can evaluate and rule out the wrong supplements and herbs. This is a far better approach than someone who is just trying things to see if they work.