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Vitamin D

Vitamin D is fat soluble and is also called 'Sunshine Vitamin'. This vitamin works in the structure of steroids as well as hormones. 7-Dehydrocholesterol, a pro-vitamin of vitamin D, is an inactive form of vitamin D. The active ingredient of this precursor is converted by ultraviolet rays under the skin. This is due to intramolecular rearrangement. During cholesterol synthesis (biosynthesis) 7-dihydrocholesterol molecule is formed. With the help of sunlight, 7-dihydrocholesterol is converted into cholecalciferol in the skin. Cholecalciferol is an active form of vitamin D. Vitamin D2 (precursor D2) is absorbed from the small intestine along with bile salts. Vitamin D2 is converted to D3 (1, 25-dihydroxycholecalciferol) in the liver and then in the kidneys.

Vitamin D is fat soluble and is also called 'Sunshine Vitamin'. This vitamin works in the structure of steroids as well as hormones. 7-Dehydrocholesterol, a pro-vitamin of vitamin D, is an inactive form of vitamin D. The active ingredient of this precursor is converted by ultraviolet rays under the skin. This is due to intramolecular rearrangement. During cholesterol synthesis (biosynthesis) 7-dihydrocholesterol molecule is formed. With the help of sunlight, 7-dihydrocholesterol is converted into cholecalciferol in the skin. Cholecalciferol is an active form of vitamin D. Vitamin D2 (precursor D2) is absorbed from the small intestine along with bile salts. Vitamin D2 is converted to D3 (1, 25-dihydroxycholecalciferol) in the liver and then in the kidneys.
Vitamin D


Animal D vitamins are absorbed more easily in the body than plant D vitamins. Eggs, egg yolk, milk and dairy products, butter, cheese, oil from fish liver are the best sources of vitamin D. Cold sunlight is also an important source of nutrient D.


Daily requirements:

Children require 100 units per day (IU), growing children need 250 IU per day, and pregnant and breastfeeding women need 250 IU per day of nutrient D3 (cholecalciferol).


Vitamin D Function:

Vitamin D3 regulates the levels of calcium and phosphorus in the plasma. As D3 is an immune molecule, nutrient D3 was recommended for each person during the Kovid epidemic. Its deficiency was found to increase the symptoms of covid patient. D3 is needed to increase the number of blood cells. It helps reduce anemia and boosts immunity. D3 increases the absorption of calcium and phosphorus from the small intestine and kidneys. nutrient D provides some protection against prostate, colon, rectal and breast cancers.


Vitamin D Deficiency:

Deficiency of this vitamin causes rickets in children. In severe cases, the bones of the legs below the knee become crooked. Inadequate mineralization of bones occurs in muddus disorder. Osteomalacia is caused by a lack of nutrient D in adults. Lack of calcium and phosphorus in the bones of adults causes osteoporosis. In this disease, even a small shock can break the bones in the body. Large cavities form in the bones.


Currently, it is recommended to take a dose of nutrient D during covid epidemic.


Nutrient D deficiency is found in vegetarians as well as alcoholics, patients with liver and kidney disease, as well as malabsorption and malnutrition.


Vitamin D:

Acute overdose of this vitamin causes nausea, vomiting and diarrhea. Prolonged but slow overeating causes stones in the kidneys and kidney-urinary tract. Increased calcium in the muscles causes muscle stiffness. The pulmonary arteries become hard. ERV Metastatic calcification occurs in tissues where calcium does not accumulate. Excessive mineralization of bones can occur in growing children.