After starting with a disclaimer, that he is not a doctor, Colby outlines a few guidelines for supplements.  First, understand the concept of bio-individuality.  Next, know that eating good, healthy food should always the first choice when you want to increase your body's performance.  Absolutely use discernment when reading labels and marketing materials related to supplements.  Answer a few questions about why you're taking supplements in the first place.  - Is it to optimize health?  - Or is it to take a shortcut? Maybe to bio-hack?  - Maybe to optimize performance? There are many variables that affect studies about supplements that can affect their findings.  Colby's note to coaches: you can make recommendations or suggestions, but the athlete is making the choice and takes responsibility for any supplements they choose to take.  https://heartandsoil.co/ https://www.globaldro.com/Home https://www.usada.org/wp-content/uploads/supplement-guide.pdf https://omegaquant.com https://articles.mercola.com/sites/articles/archive/2020/08/01/benefits-of-good-iron-levels.aspx https://www.usada.org/wp-content/uploads/supplement-guide.pdf