Im not sure though but from what i know. the sun is responsible for the production of vitamin D in our body. Most of the foods that we consumed are vitamin D precursor. Meaning it is inactive. But the vitamin D can only be active if we are exposed to the sun. In addition. . . from what i read in one of the website(cant remember what the website was.). . it stated that "the healing rays of natural sunlight cannot penetrate through glass (e.g car's window) so not Vitamin D regenerated" . . this is a situation when you are in your car driving. . I hope this could help you a bit. . 8 least you get an idea from what im saying here.
Corporation
You can get rid of purple hair with the least amount of damage by bleaching, using Vitamin C treatment, color remover, anti-dandruff shampoo, bleach bath, bleach bath or High-lift Blonde Dye.
vitamin a Any fat-soluble vitamin.
every one knows that soy milk has the least lactose. what do you think the word soy means?
People with a diet of regular and adequate intake of foods rich in vitamin A; or taking vitamin A supplements.
Tertiary consumer has the least amount of energy.....
the least amount is .2
Not all health professionals agree you should take vitamin supplements, at least not as a substitute for getting your vitamins and other nutrients from food. When you get vitamins from food, you get the complete vitamin and co-factors that the nutrients need to work in your body. Supplements do not always, in fact often do not, contain the whole vitamin or the co-factors the vitamin needs to work.
the least amount would be 3
It is advisable to do vitamin d test at least once before starting any supplementation.
The Antarctic Desert has the least amount of vegetation.