Description
Vitamin D is one of the most studied, most talked-about, and most deficient nutrients in the modern world. In this foundational video, Dr. Berg makes the comprehensive case for why vitamin D is not optional and why virtually every system in the human body depends on it. He explains the true scope of vitamin D’s role in the body, covering its regulation of immune function, mood and mental health, cardiovascular protection, insulin sensitivity, muscle function, hormonal balance, and the expression of hundreds of genes involved in cellular repair and longevity. Dr. Berg also addresses the global epidemic of vitamin D deficiency, explaining why sun avoidance, indoor lifestyles, sunscreen use, gut absorption problems, obesity, and darker skin pigmentation all dramatically reduce vitamin D status in populations around the world. He provides clear guidance on how much vitamin D the body actually needs—versus what the outdated RDA suggests—and explains the essential cofactors (magnesium and vitamin K2) required for vitamin D to work safely and effectively. Whether you’ve been told your vitamin D levels are fine or you’ve never had them tested, this video makes the scientific case that your body almost certainly needs more than it’s getting.
