Creatine supplements are one of the most popular health supplements utilized by InsideTracker users and the general population. While some hail it as a useful tool to increase muscle gains, boost recovery, and surge testosterone, others denounce it as an ineffective supplement that causes liver and kidney damage.Most fitness challenges are made for tiny guys whose relative strength is off the charts. Focus on building every muscle group evenly, not just the "show" muscles.Talk to a fitness…See More