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Vitamin D
Vitamin D is a fat soluble vitamin. In Human
being it is found in two forms. Calciferol (Vitamin D2 ) and Cholecalciferol (Vitamin D3).
It is also known as sun shine vitamin
Functions of Vitamin - D
Vitamin D Promotes intestinal absorption of calcium and phosphorus
It Stimulates normal mineralization, enhances bone reabsorption andaffects
collagen maturation.
Vitamin D also acts as a hormone in our body and increase tubular reabsorption of
phosphate.
Vitamin D has positive impact on reducing the risk of several chronic diseases, including
certain cancers and cardiovascular diseases
Sources of vitamin D
Vitamin D occurs only in foods of animal origin. Liver, egg yolk, butter and cheese,and
some species of fish contain useful amounts
Vitamin D is synthesized by the action of UV rays of sunlight on 7-dehydrocholesterol,
which is stored in the skin. So vitamin D is also known as sunshine vitamin
Recommended daily intake
• Infants 0--12 months: 400 IU (10mcg).
• Children 1-18 years: 600 IU (15mcg).
• Adults up to 70 years: 600 IU (15mcg).
. Pregnant or lactating women: 600 IU(15mcg)
Deficiency
Deficiency symptoms
Fatigue
Bone and back pain
Low mood
Impaired wound healing
Hair loss
Muscle pain
