The body needs to have sunlight on the skin, to make vitamin D.
Low vitamin C levels can indicate a deficiency in this essential vitamin, which is important for immune function, collagen production, and wound healing. Symptoms of low vitamin C levels can include fatigue, susceptibility to infections, and slow wound healing. It is important to consume an adequate amount of vitamin C through diet or supplements to maintain optimal health.
vitamin D
True, provided you are exposed to the sun. Sunlight enables your body to make vitamin D. For this reason, vitamin D is sometimes called the sunshine vitamin.
No, vitamin C is not a base. It is an essential nutrient that acts as an antioxidant in the body.
it help by giving nutrients
in large amounts
If your body has an inadequate amount of vitamin C you can develop scurvy. The best way to prevent this is to simply have an orange or other fruit with a high vitamin C content.
kindney
Vitamin A is a fat-soluble vitamin which means that it is stored in the liver. Vitamin A dosages should not exceed the recommended daily amount or they can be toxic to the body.
The amount absorbed and subsequently used by the body
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.
No vitamin does. Your body needs a balanced amount with protein, sugars and fats. You can not win a race with just taking an extra dose of a vitamin.
Vitamin K is converted to active vitamin K in the body which helps to activate clotting factors in the liver. Coumadin (warfarin) prevents the body from activating vitamin K, therefore the clotting factors are never activated and your blood becomes thinner or more difficult to clot. When you eat vitamin K rich foods (green leafy vegitables, etc), the vitamin K competes with the Coumadin and can neutralize its effect.
That depends on which vitamins the body is not getting as a result of diet or other enviromental factors.
The amount of vitamins from your diet, without considering the vitamin supplements
Vitamin A is an important element required for the healthy functioning of the body. One of the easiest ways to get the suggested dietary amount is through the use of vitamin A supplements. It is important to pay attention to the amount of vitamin A that is ingested, however, because large doses can actually be very harmful and even cause vitamin A poisoning. Most vitamin A supplements should be taken only after examining the amount of the vitamin in any other supplements being taken. Additionally, some topical skin treatments contain vitamin A as well and can be absorbed into the body quickly. Taking too much vitamin A can result in serious liver damage, although a vitamin A deficiency is equally as harmful over time.
In United States, the Recommended Daily Allowance for Vitamin C is 90mg for males and 75mg for females. The RDA and TUL for children, pregnant women, smokers, and breastfeeding women is more. The Tolerable Upper Limit is 2,000 mg. There is an upper limit set on Vitamin C because taking megadoses of it enhances iron absorption. When iron absorption is enhanced you can get iron overload which affects major organs in the body. There are also some studies that say there is a correlation between the amount of kidney stones and the amount of Vitamin C.