Wednesday, April 14, 2010
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12:18 PM
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What Is Vitamin A?
Vitamin A is important to vision, especially the ability to see in the dark. A deficiency of vitamin A leads to xerophthalmia, which causes irreversible damage to the eyes and blindness. Vitamin A deficiency is a major cause of blindness in the world. Vitamin A is also important to maintaining healthy skin and it helps the body to resist infection.
Benefits of Vitamin A
Vitamin A is important for the immune system, and it keeps skin and mucous membrane cells healthy. Vitamin A helps to fight cancer by inhibiting the production of DNA in cancerous cells. It slows down tumor growth in established cancers and may keep leukemia cells from dividing.
What Is Vitamin B?
The B- complex vitamins are actually a group of eight vitamins which include
- Thiamine B1
- Riboflavin B2
-Niacin B3
-Pantothenic acid B5
-Cyanocobalamin B12
-Folic acid
-Biotin
These vitamins are essential for:
The breakdown of carbohydrates into glucose this provides energy for the body the breakdown of fats and proteins which aids the normal functioning of the nervous system
Muscle tone in the stomach and intestinal
Tract
Skin
Hair
Eyes
Mouth
Liver
Some doctors and nutritionists suggest taking the B- complex vitamins as a group for overall good health. However, most agree that the best way to get our B vitamins is naturally through the foods we eat.
Vitamin c
It is interesting to note that most animals produce their own vitamin C. Man, primate’s apes, chimps, et cetera and guinea pigs have lost this ability. Due to this similarity with man, guinea pigs have been subjected to experimentation over the years. Both vitamin C and the B vitamins are also stored in the liver.
What so important about Calcium?
Calcium is responsible for the development of bones and teeth and also plays a vital role in muscle contraction- this includes the heart- cell metabolism, and much more.
What is Calcium?
It is a basic chemical element that is classified as a mineral. It is the most abundant mineral in the body. Ninety- nine per cent of calcium is in our bones and teeth, with the remainder in our tissues and blood.
How does it work?
Calcium intake is regulated hormonally and also requires Vitamin D, which assists in its absorption into the body through the intestines and in keeping calcium in the body in balance. In childhood bones are being made at a rapid rate. In our middle adult years, the balance between bone making and bone breakdown in a healthy person is about equal. And then, as we age, more bone breakdown occurs, especially in women as they enter menopause. Calcium is a key player in all of this. Healthy bones at any age depend on how calcium is used to make them, how much is being released into the bloodstream as they breakdown, and then how that, along with new calcium we take in through our diet, is used again to remake our bones.
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laura
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