Many know vitamin D as the "sunshine vitamin" related to bone health—but research suggests its role goes far beyond that. From cancer (colon, breast), cardiovascular disease, diabetes, immune and neurological disorders, to infectious disease like TB, low or deficient vitamin D levels are being increasingly implicated in major health risks. In this episode of Health Talk: Your Partner in Health, Dr. Caitlin Prickett and patient advocate Jeffery Runyon explore the hidden epidemic of vitamin D deficiency. We unpack what the latest studies tell us—why levels above 40-60 ng/mL may offer protection, how vitamin D acts at the cellular level, and compare supplementation strategies (D2 vs D3 vs injections). Whether you're curious about prevention, want to understand what your recent blood work means, or considering supplementing, this is an episode packed with evidence, insights, and practical takeaways. Tune in to learn how something as simple (and often overlooked) as vitamin D might be one of the most powerful tools in your prevention toolbox.