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Vitamin A Deficiency
The book below offers an excellent overview about the way we can feed ourself to make sure we receive all vitamins and minerals we need to maintain a healthy body and mind.
Doctor Yourself: Natural Healing That Works - Andrew Saul
Self Help Audio Book for immediate download
"Must reading for anyone seriously interested in health and doubtful about the efficacy of conventional medicine." - John Moelaert, author of The Cancer Conspiracy"Thank you, Dr. Saul, for making this information more available and thus promoting the development of the medicine of the twenty-first century - orthomolecular medicine." -- Abram Hoffer, M.D., author of Putting It All Together: The New Orthomolecular Nutrition
The human body evolved to live well and fight off disease on a supply of only a dozen or so essential nutrients. Unfortunately, modern meat-laden, high-sugar diets provide catastrophically inadequate levels of those nutrients. Scientific research consistently indicates nationwide vitamin and mineral deficiencies in our country, and we spend over a trillion dollars each year on disease care. Andrew Saul has seen enough of this situation, and in Doctor Yourself, he gives you the power you need to change it.
Dr. Saul explodes the myth that an army of medical specialists and pharmaceutical drugs are necessary to maintain our health. Using the protocols laid out in Doctor Yourself, you not only can prevent disease from getting a foothold in the first place, you can also cure yourself of illness already in progress, without resorting to drugs or surgery.
Doctor Yourself: Natural Healing That Works - Audio Book Downloads.
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Vitamin A
Vitamin A, a bi-polar molecule formed with bi-polar covalent bonds between carbon and hydrogen, is linked to a family of similarly shaped molecules, the retinoids, which complete the remainder of the vitamin sequence. Its important part is the retinyl group, which can be found in several forms. In foods of animal origin, the major form of vitamin A is an ester, primarily retinyl palmitate, which is converted to an alcohol (retinol) in the small intestine. Vitamin A can also exist as an aldehyde (retinal), or as an acid (retinoic acid). Precursors to the vitamin (provitamins) are present in foods of plant origin as some of the members of the carotenoid family of compounds. Carolyn Berdanier. 1997. Advanced Nutrition Micronutrients. pp 22-39
All forms of vitamin A have a beta-ionone ring to which an isoprenoid chain is attached. This structure is essential for vitamin activity. The orange pigment of carrots - beta-carotene - can be represented as two connected retinyl groups, which are used in the body to contribute to Vitamin A levels. The retinyl group, when attached to a specific protein, is the only primary light absorber in visual perception, and the compound name is related to the retina of the eye.
Vitamin A can be found in various forms:
*retinol, the form of vitamin A absorbed when eating animal food sources, is a yellow, fat-soluble, vitamin with importance in vision and bone growth. Since the alcohol form is unstable, the vitamin is usually produced and administered in a form of retinyl acetate or palmitate.
*other retinoids, a class of chemical compounds that are related chemically to vitamin A, are used in medicine. American Cancer Society: Retinoid Therapy
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Vitamin A - Photos of Food containing Carotin
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