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by Life Extension Foundation
WHAT IS IT?
Vitamin A liquid emulsion is Vitamin A in a highly concentrated liquid form. Each drop contains 20,000 units (45 mg) of Retinyl palmitate. Other ingredients are vegetable oil and polysorbate.
WHAT DOES IT DO?
Vitamin A is a fat soluble vitamin derived from carotene and found in yellow and green vegetables as well as egg yolk.
Vitamin A has many beneficial properties: it induces cell differentiation, it stimulates immunity, it is antiviral, it is an antioxidant, and it is needed for the formation of bone, protein and growth hormone.
According to the manufacturer:
"Vitamin A (retinol) is a yellow, fat-soluble solid terpene alcohol obtained from some carotenoids by conversion in the liver, its storage organ. While carotenoids are widely distributed in such foods as green and yellow vegetables, retinol is not found in any vegetable sources, but is concentrated in egg yolks and the livers of many animals. Vitamin A, either from animal sources or synthesized in our own liver, is essential for growth and reproduction, maintaining healthy vision, and supporting protein synthesis and cell differentiation.
Vitamin A and its analogs have shown the ability to help maintain proper DNA function.
One study however, has shown that for certain lifestyles (e.g., smokers) supplemental intake of too much beta-carotene in the absence of other carotenoids and antioxidants (such as at least 400 IU/day of vitamin E) may be harmful.
Beta-carotene is the most potent precursor to vitamin A, but its conversion to vitamin A in the body is limited by a feedback system. It is an important antioxidant in its own right and one that can only build up to toxic levels in rare circumstances. Beta-carotene helps support immune health by enhancing the function of the thymus gland.
Vitamin A and its analogs have shown the ability to help maintain proper function of DNA. Anyone taking very high doses of vitamin A should do so under the care of a physician, and should be aware of the following symptoms of vitamin A toxicity: headaches; dizziness; blurred vision; joint pain; dry lips; scaly, dry skin; and excessive hair loss.
Blood tests showing elevated liver enzymes
may be a sign of vitamin A overdose. If any of these symptoms appear,
discontinue using vitamin A until the symptoms disappear, and then resume
vitamin A therapy at a much lower dosage. Those with thyroid cancer should
avoid vitamin A."
CAUTIONS
Do not use high doses of Vitamin A without using the emulsified form and without a physician's supervision. Signs of toxicity include headache, dizziness, fatigue, emotional instability, blurred vision, muscle and joint pain, chapped lips and dry skin. Elevated liver enzymes are another indication of possible toxicity. Vitamin E counteracts the toxic effects of Vitamin A and should always be taken with it. Pregnant women and those likely to become pregnant should never take Vitamin A as it causes birth defects!
Beta-carotene is converted into Vitamin A in the body and is a safer choice for women of child-bearing age.
Thyroid cancer patients or those with severe thyroid deficiency should also avoid this product.
See Disclaimer.
DOSE
| One drop daily is suggested for healthy people. |
| This product is most effectively utilized when taken in divided doses with fat-containing, low fiber meals. |
NHC sells 30 ml bottles Liquid Emulsified Vitamin A for $23.00. The suggested retail price is $27.00.
These statements have not been evaluated by the
U.S. Food & Drug Administration (FDA).
The products discussed are not intended to diagnose, treat, cure, or prevent
any disease.
Created March 1, 1998 (Personal page
April 25, 1995)
(This site was created from FrontPage 2000 at a resolution of 1024x768 in 32 bit
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Gerry Wolke, RPh.
