Please keep in mind that I am only rating products that have been scientifically validated. I don't have time to test all of them for effectiveness or accuracy. I just use them as a starting point for your own evaluation of the products.
What are the benefits? As you can see from the chart above, most products listed are pretty much useless for effective exercise training. For example, one product claims to help you with "crowding." However, I would not recommend using this product if you don't have proper room for your body (e.g. if you are obese). As I mentioned above, I only use products with a documented benefit to exercise and training. Is it safe? This chart indicates that most products are safe and effective for short-term use. However, it is important to note that some products may not work for you. For example, many people report that creatine monohydrate may not help with fat loss. As for creatine in supplements, some people claim that it increases the risk of blood clots, which is not the same as creatine being a danger to your heart, as some people have suggested. If you do need to use supplements, I would recommend that you read the labels thoroughly and ask for the supplement label information for every product that you purchase.