I've seen in the past DNA tests available to help you determine how your body best reacts to nutrition, activities and recovery. I've seen more athletes using this to help with their programming, more recently I noticed Eddie Hall mention it more often, and a few Olympic athletes. They seem to range in cost from £100 upward to a few hundred for the more detailed tests. With the problems I've had, I wondered about doing one of these to see if I can optimise my training regime. They cover how your body reacts to various nutrition, whether your body is better with power/endurance, max vo2, recovery rate and your susceptibility to injury. Has anyone looked into these and what are your thoughts on their validity? Part of me thought is that may not be useful information if you already spent decades finding the information out in your own journey of trial and error.