Article contentCreatine, says Kirk, is by far the most studied supplement on the planet and many of the studies are open access and available to the public. To do your own research, Kirk recommends a particular tool for those who are interested in supplements and nutrition. It is Examine.com, which is a website written and run by a team of professional researchers and writers and offers easy to understand guides and breakdowns of just about any supplement you can think of, he says.