A massive NIH-AARP study of over 471,000 adults links higher calcium intake to a striking 29% lower colorectal cancer risk—but the story gets complicated when randomized trials and supplement risks enter the conversation. This episode breaks down the real science behind calcium, cancer prevention, and the critical gap between observational data and clinical evidence. If you’re navigating diet, supplements, and long-term health, this is a clear, no-hype guide to what actually matters.