Vitamin D Deficiency

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Vitamin D deficiency affects almost 50% of the population worldwide. In the United States, the overall prevalence rate of vitamin D deficiency is approximately 41%, with the highest rate seen in blacks (82%), followed by Hispanics (69%). For this survey, vitamin D deficiency was defined as a serum 25-hydroxyvitamin D concentration of ≤20 ng/mL (50 nmol/L), but optimal levels of vitamin D status are actually much higher, at 30-100 ng/mL.

Unlike other essential vitamins that must be obtained from diet or supplementation, vitamin D can be synthesized in the skin through a photosynthetic reaction triggered by exposure to the sun’s UVB rays.

These widespread deficiencies can primarily be attributed to limited sunlight exposure (from outdoor time and/or excessive use of sun blocking means like sunscreen and skin cover) as well as environmental factors like air pollution that reduce exposure to sunlight, which is required for vitamin D production in the skin.

Vitamin D deficiency is a risk factor for a number of diseases. And in fact, emerging research supports the possible role of vitamin D against cancer, heart disease, fractures and falls, autoimmune diseases, influenza, type-2 diabetes, and depression. Current studies suggest that we may need more vitamin D than presently recommended to prevent chronic disease. Research also suggests that increasing serum 25(OH)D levels is the most cost-effective way to reduce global mortality rates, as “the cost of vitamin D is very low and there are few adverse effects from oral intake and/or frequent moderate UVB [exposure] with sufficient body surface area exposed.”

Vitamin D deficiency is also common in those with celiac disease, as it is absorbed through diet and supplementation in the small intestine, which is generally impaired in those with celiac disease. Furthermore, for those with gluten issues, vitamin D deficiency can exacerbate and contribute to the development of autoimmune diseases.

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*These statements have not been evaluated by the Food and Drug Administration. This video is not intended to diagnose, treat, cure or prevent any disease. It is strictly intended for educational purposes only. Additionally, this information is not intended to replace the advice of your physician. Dr. Peter Osborne is one of the most sought after alternative and nutritional experts in the world. A Diplomate with the American Clinical Board of Nutrition, a graduate of Texas Chiropractic College, and a doctor of pastoral science, Dr. Osborne is one of the world’s leading authorities on gluten, nutrition, and natural health. He is the founder GlutenFreeSociety.org, one of the world's largest informational sites on gluten sensitivity. In addition, he is the author of the best selling book, No Grain No Pain, published by Touchstone (Simon & Schuster). His work has been featured by PBS, Netflix, Amazon, Fox, and many other nationally recognized outlets. For more information, visit us at https://www.glutenfreesociety.org/ or call 281-903-7527