Marcus Webb

About

Marcus has a background in exercise physiology and spent four years as a strength coach before spending the last nine reviewing supplements. He got obsessed with the gap between what supplement companies claim in their marketing and what the studies they cite actually say — in many cases, the study used a completely different dose than the product, or tested a different population, or was funded by the ingredient manufacturer. He started tracking third-party testing certifications in 2018, when a popular pre-workout tested positive for a banned stimulant despite a "clean ingredients" label. Now every product he reviews goes through a literature check on PubMed, a label verification against known clinical doses, and a check of the manufacturing facility's cGMP status. He has a BS in Exercise Physiology from University of Wisconsin and holds NSCA-CSCS certification. He's been personal training for 12 years and has direct experience with most of the supplement categories he covers.

9 years of experience in supplement science.