The signs and symptoms of vitamin D deficiency can be subtle and include bone pain and muscle weakness. Severe vitamin D deficiency in children results in Rickets. Cardiovascular disease, cognitive impairment in older adults, severe asthma in children and cancer are associated with vitamin D deficiency even when no other symptoms are present. Further, research shows a relationship between vitamin D deficiency and Type 1 and Type 2 diabetes, glucose intolerance and multiple sclerosis. People who live in northern regions of the U.S. may also suffer from Seasonal Affect Disorder (SAD); a feeling of mild depression or sadness during the winter months. SAD is associated with lessened sunlight during the winter months that leads to low vitamin D assimilation in the body. Vitamin D is also an important nutritional partner to Calcium in the prevention of Osteoporosis.
Because vitamin D is such an important nutrient and is not widely available in food without fortification it is important to know how much vitamin D you need and where to get it. Vitamin D is available in egg yolks, beef liver, fish and fish oils, and cheese. Foods fortified with vitamin D include cereals, yogurt, and orange juice. Milk is fortified with vitamin D, but as you will see in my article series “What’s New with Calcium?” there are better sources of vitamin D. The best source of vitamin D is sunlight.
How much sun do you need to get enough vitamin D? The answer to that question is an article in itself. Read it here: How Much Sun Do I Need to Get Enough Vitamin D?
Vitamin D | University of Maryland Medical Center http://umm.edu/health/medical/altmed/supplement/vitamin-d#ixzz2vDO4Cx5X
University of Maryland Medical Center
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