Vitamin D Deficiency

Vitamin D Deficiency

Lack of vitamin D may now be a worldwide problem. It's difficult to find naturally occurring Vitamin D in most foods. Some foods are fortified with vitamin D but that can still leave a deficiency as defined by recommended daily requirements.

A Vitamin D Deficit

A vitamin D deficit may lead to increased risk of:
autoimmune diseases
type 1 diabetes
certain cancers
infectious diseases


NIH, Vitamin D Fact Sheet for Health Professionals, National Institues of Health, October 9, 2020,, accessed 1/9/21.

Michael F Holick, Tai C Chen, April 2008, Vitamin D deficiency: a worldwide problem with health consequences, The American Journal of Clinical Nutrition,, accessed 1/11/21.