Vitamin Dhas the chemical name calciferoland facilitates intestinal absorption of calcium and phosphorus. It is also required for calcium to bind to bones. Because of this, it is essential for the health of our bones. The best source of vitamin D is .... in our skin, which produces it in response to sunlight.
Vitamin D and sun
It is believed that exposure to sunlight is sufficient to produce 80% to 90% of your body's vitamin D requirements. Our requirements are met simply by exposing our hands, forearms, and face for 10 to 15 minutes each day.
Sources of vitamin D
On the other hand, our diet is of limited help to us. Vitamin D is certainly found in cod liver oil, salmon, herring, anchovies, sardines, mackerel, margarine, butter, calf liver and eggs but only in very small amounts! As evidence of this, in order to achieve the recommended daily allowances (RDA) of vitamin D, you would need to eat 5 slabs of butter or 20 eggs each day! So it is better to take a pharmaceutical supplement If you are deficient for some reason.
Eggs, a source of vitamin D. DR Credits