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Vitamin A and Beta Carotene...
...research into how these vital nutrients play an
important role within the body.
Vitamin A is actually a family of fat-soluble vitamins, including retinol and
retinoic acid.
They are often dubbed "preformed
vitamin A".
Vitamin A helps the normal development and growth of bones; it is essential for cell
differentiation, epithelial tissues, visual and reproductive function. Vitamin A is also
noted as an anti-ageing agent. It is not itself an antioxidant.
Pure vitamin A is usually only available on prescription as it can be toxic, and the only
source of pre vitamin A are "animal"; for example, fish oils, whole milk and
liver. Also many breakfast cereals contain pre formed vitamin A.
Vitamin A is stored in the liver, from where it is relseased in times of shortage.
However, large doses of Vitamin A cause liver toxicity - the symptoms include yellowing of
the skin or eyes, rashes, fatigue, headaches and blurred vision.
Vitamin A is lost during food preparation, cooking and storage.
There is however a second way of increasing levels of vitamin A in the body and this via
its precursors, the carotenes - also called pro vitamin A.
These allow your body to convert the precursors into Vitamin A, as and when needed,
avoiding the toxicity problems.
However, the conversion is blocked by polyunsaturated fats unless there are good supplies
of other antioxidants present to neitralise them.
In other words, the best way to maximise your vitamin A level is to take it as beta
carotene along with other antioxidants.
Unlike beta-carotene, vitamin A is not an antioxidant.
Vitamin A and Cancer
The association of vitamin A and cancer was initially reported in 1926 when rats who were
fed a vitamin A deficient diet, developed gastric carcinomas (Loescher - Vitamin Therapy
for advanced cancer).
However, the first investigation showing a relationship between vitamin A and human cancer
was performed in 1941 by Abelsetal who found low plasma vitamin A levels in patients with
gastro-intestinal cancers.
Nutritional Vitamin Supplements
o Maximol (liquid vitamins and
minerals)
o Orachel (multi-vitamin oral chelation
formula)
o Revenol (powerful antioxidants)
Other Nutritional Information
o Specific Vitamins and their benefits
o The role of Vitamins in our bodies
o Vitamin A Deficiency - How it changed my
life!!
o Vitamin A - Facts
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