Are Your Supplements Actually Working? Discover Why Medical-Grade Matters. Tired of spending money on supplements that don’t deliver? In this episode of the RevMD Podcast, nurse practitioner Farideh and I break down the real difference between over-the-counter and medical-grade supplements—and why quality, absorption, and third-party testing matter more than you think. From vitamin D to omega-3s, collagen to glutathione, we share our go-to supplements from Designs for Health that support hor...