Which of the following statements is are correct with regard to Vitamin D 1 Vitamin D...........

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Which of the following statements is/are correct with regard to Vitamin D:

1. Vitamin D is essential dietary vitamin

2. Vitamin D is produced in the skin by ultraviolet light.

3. Mothers milk is rich in vitamin D

Codes:

1 & 3

1 and 2 only

2 & 3

1, 2 & 3

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Explanation:

Only statements 1&2 are correct.

Vitamin D is a fat-soluble vitamin that is naturally present in very few foods, added to others, and available as a dietary supplement. It is also produced endogenously when ultraviolet rays from sunlight strike the skin and trigger vitamin D synthesis. Vitamin D obtained from sun exposure, food, and supplements is biologically inert and must undergo two hydroxylations in the body for activation. Breastmilk doesn't naturally contain high levels of vitamin D as, in the past, babies would absorb most of their vitamin D from exposure to sunlight. Vitamin D and 25-OH-vitamin D are 10 to 20% of breastmilk levels and 1 to 2% of maternal blood levels, respectively. Hence option 4th is correct.