What It Doses
Helps the body utilize calcium and phosphorus; promotes normal development of bones and teeth; assists in thyroid function; maintains normal blood clotting; helps regulate heartbeat, nerve function, and muscle contraction.
Minimum Recommended Daily Allowance
5 µg
Food Sources
Dandelion greens, dairy products, eggs,fatty saltwater fish, parsley, sweet potatoes, vegetable oils.
Toxic Dosage
Daily does higher than 20 µg can lead to raised blood calcium levels and calcium deposits of the heart,liver, and kidney.
Enemies
Antacids, cholesterol-lowering drugs, cortisone drugs.
Deficiency Symptoms
The body naturally manufactures about 200IU of vitamin D when exposed to ten minutes of ultraviolet light, making deficiency rare. Symptoms include bone weakening, diarrhoea, insomnia, muscle twitches, vision disturbances, Severe deficiency can lead to rickets, a disease that results in bone defects such as bowlegs and knock-knees.
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