You should first read the supplement labels and then decide if you want to give them a try. Please be aware that there are many supplements that have questionable claims, and you should always read the package label to be sure it is safe for you and your body.
A few common supplements on this page have been found to be potentially dangerous, and have been shown to have serious side effects. These are: Amino acids There are many different types of amino acids, but the most important ones are leucine, isoleucine, and valine. Some studies have found that taking leucine supplements can cause heart problems, including angina. In one study, for each 100mg/day of leucine taken, 11 people had a heart attack. Other studies have not found any relationship between leucine supplementation and heart attack, although they did find that taking leucine supplements may increase your risk of diabetes. Another type of amino acid that can be found in supplements is the amino acid tryptophan. When taken by mouth, tryptophan may be converted to serotonin, the neurotransmitter. It is not known if serotonin is a cause of heart attacks, but it could be a cause of strokes, especially when taken in combination with other medications.