Vitamin D: Hormone, Immune Activator, and Top Food Sources for Optimal Health

The podcast emphasizes that vitamin D is actually a hormone, not a vitamin, as the body can synthesize it. It highlights its crucial role in calcium metabolism, muscle tone, nervous system signaling, and immune activation. Dr. Ekberg argues against the efficacy of synthetic vitamin D fortification in processed foods, suggesting that natural sources and proper bodily function are paramount for effective utilization. He also points out the widespread deficiency despite fortification, attributing it to the synthetic nature of D2 and compromised internal pathways. A key distinction is made between vitamin D2 (ergocalciferol, plant-derived, less efficient) and vitamin D3 (cholecalciferol, animal/human-derived, more potent). The process of vitamin D synthesis is detailed, involving skin, liver (converting to calcidiol), and kidneys (final conversion to calcitriol), underscoring that organ health is vital. The speaker differentiates between deficiency (<20 nanograms), sufficiency (30-50 nanograms), and the potentially misguided pursuit of excessively high levels (80-100 nanograms) through heavy supplementation, warning against toxicity. The primary recommendation for obtaining vitamin D is through moderate sun exposure, detailing factors like skin tone, exposed skin area, angle of the sun, and duration for fair-skinned individuals. For dietary intake, the podcast strongly advocates for natural, animal-based sources, particularly fatty fish like salmon, mackerel, and eel, and especially cod liver oil as a concentrated, bioavailable source. It also mentions mushrooms exposed to UV light as a plant-based option, though noting it's D2. The speaker advises against relying solely on fortified foods due to the perceived inefficiency of synthetic D2. The widespread deficiency of vitamin D, particularly among darker-skinned populations, is presented as a significant public health concern. The podcast connects low vitamin D levels to increased risks of cancer, heart disease, fatigue, obesity, and depression, underscoring its broad impact on overall health and disease prevention. It challenges the conventional approach of mass fortification with synthetic vitamins, advocating for a holistic perspective that prioritizes natural synthesis, whole food nutrition, and healthy organ function for true health mastery.

"The first thing we have to know about vitamin D is that it's not a vitamin. Vitamin D is actually a hormone because we can make it ourselves."

"The hallmark of a deficiency is called rickets. Rickets is a softening of bone, it's a malformation of bones when the calcium can't get deposited because we don't have enough vitamin D."

"If we have a fatty liver or we have some kidney disease then we can't complete this process and we don't get the final product of vitamin D that we actually use called calcitriol."

"Every time they do some new research they find more ways than vitamin D is important so they find that low levels of vitamin D is associated with higher levels of cancer, higher levels of heart disease, higher levels of fatigue, more obesity and more depression."

"While less than 20 nanograms is deficient a normal or sufficient level is considered 30 to 50 and some people argue that the higher the better... I don't subscribe to that opinion because even though deficient is a bad thing that doesn't mean that more than sufficient is better."

"The average person received about 2,400 about four to six times the recommended daily allowance from synthetic vitamin D so how then were all these people deficient?"

"In my opinion I think it is because the synthetic vitamin D is not the same when we irradiate yeast or when we irradiate Greece it can never be the same way as the original mechanism that your body manufactures it."

"Vitamin C is only available in plant food and vitamin D is only available in animal food there is virtually no exceptions to that rule."

"The best way still and always to get your vitamin D is from the Sun that's how humans have done it for thousands hundreds of thousands of years."

"If you take somewhere between a teaspoon and a tablespoon of cod liver oil then you're gonna get your full daily supply of vitamin D and not only that but you're gonna get it in a form that's very absorbable and you're gonna get it together with plenty of vitamin A."