Creatine is one of the oldest bodybuilding supplements know to man, this product has been in most bodybuilders diet plans since the 60s. The main reason is simple it works. You can add some serious muscle when taking this product. If you are looking to add a few pounds naturally then this is the ingredient for you. This is also a great product for vegan bodybuilders to help supplement the fact that they eat no meat. See this ingredient comes from meat so without it you will most likely want to use it if you are looking to build muscle.