What is Vitamin D?
February 4th, 2010We have all heard about the importance of vitamin D and possibly even some specific nutritional guidance on the proper intake of vitamin D, but do most of us really know why we need it in our bodies? Vitamin D is usually obtained from sun exposure, food, and supplements. Although it IS found in foods, very few foods naturally contain vitamin D, including fatty fish, egg yolk, milk, orange juice, yogurt, and cereal/bread.
What does Vitamin D do for our bodies?
- aids in the Maintenance of organ systems
- increases flow of calcium into blood stream
- promotes the absorption of calcium from food in intestines
- reabsorbs calcium in kidneys
- bone growth and remodeling
Who is at risk for low levels of Vitamin D?
- breast fed infants
- someone above 50 years old can not synthesize vitamin D efficiently
- those with limited sun exposure
- dark skin people- melanin means less ability of skin to produce vitamin D from UV
- obese people
What can a lack of vitamin D lead to?
- thin, brittle bones
- rickets
- osteomalacia, osteoporosis
- links to increased susceptibility to chronic diseases: tuberculosis, periodontal diseases, MS, chronic pain, SAD
As personal trainers, it is important to educate our clientele on the many intracacies of proper nutrition. Adequate Vitamin D levels may be overlooked by many, but should be viewed as an essential part of one’s diet.
