8 Essential Nutrients That Are Making You Sick And Tired

Vitamin D

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5. Vitamin D

Vitamin D is not found in very many foods. The best food sources are fatty fish such as tuna, mackerel, salmon, and fish liver oils. Vitamin D is also found in small amounts in foods such as egg yolks, mushrooms, and beef liver. Most Americans get their vitamin D from fortified foods such as cereal and milk. Vitamin D regulates how our body absorbs and uses calcium, so it keeps our teeth and bones strong. Our central nervous system relies on it, as well as our immune system, to keep inflammation levels check. A deficiency of Vitamin D can cause bone pain, muscle weakness, and daytime sleepiness. Although a disease called the rickets is almost unheard of since the 1930’s, it does still occur.

No one needs to be deficient in vitamin D since our bodies convert sunlight into vitamin D naturally.  For most people, simply getting 30 minutes of sunshine most days is enough to provide them with all the vitamin D that they need. If you cannot get out into the sun for whatever reason, you may want to consider a supplement. The RDA for this vitamin is 600 IU for both men and women between the ages of 17 and 60.

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