Walk into any health food store or scroll through your social media feed, and you will be inundated with the latest "must-have" supplements. From high-dose Vitamin D to adaptogens that promise renewed energy and vitality, the wellness industry has made self-prescribing nutrients easier than ever. It is a compelling message: if a little of a nutrient is good for you, then more must be better. In reality, human biology is far more complex. Guessing your nutritional needs based