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Overview

A vitamin is an organic compound required as a nutrient in tiny amounts by an organism. A compound is called a vitamin when it cannot be synthesized in sufficient quantities by an organism, and must be obtained from the diet. Thus, the term is conditional both on the circumstances and the particular organism. For example, ascorbic acid functions as vitamin C for some animals but not others, and vitamins D and K are required in the human diet only in certain circumstances.

Vitamins are classified by their biological and chemical activity, not their structure. Thus, each "vitamin" actually refers to a number of vitamer compounds, which form a set of distinct chemical compounds that show the biological activity of a particular vitamin. Such a set of chemicals are grouped under an alphabetized vitamin "generic descriptor" title, such as "vitamin A," which (for example) includes retinal, retinol, and many carotenoids. Vitamers are often inter-convertible in the body. The term vitamin does not include other essential nutrients such as dietary minerals, essential fatty acids, or essential amino acids, nor does it encompass the large number of other nutrients that promote health but are otherwise required less often.

Saturday, December 20, 2008

Fat, Fiber, Yeast, and Acne

If you grew up in the 20's, 40's, 50's, 60's or 70's, chances are you were told that constantly eating chocolate and eat fatty foods usually cause acne. Surprisingly, over the decades, scientists have little or instruct no evidence that high-fat foods, in and of itself, cause acne.

Cholesterol is a building block for testosterone, but the body in the supply of cholesterol is mostly by the liver. The elimination of fatty foods in general has very little effect on either the amount of cholesterol in circulation or the progress of acne. Among high-fat foods, chocolate and nuts are often referred to as causes of acne. They are not. The tyrosine in chocolate, gelatin, nuts and can aggravate herpes, but has no effect on acne.

Another recommendation that people used to, so you do not often hear today is fiber (not that Metamucil has always been that all popular with young people). In addition to the detection of some extensive research from Holland, it is also known that the fiber waste estrogen absorbed in the intestine, which prevents the hormone is not absorbed through the intestinal wall back into the bloodstream, where they can testosterone. While the fiber is not violated, there is no evidence that it produces specific improvements in acne. However, if you opt for fiber, always fiber supplements separately from other supplements and drugs. Fiber keeps the medicine is not completely absorbed.

An old favorite, but the ravages of time.

high-chromium yeast improves the ability of insulin, sugar from the blood and into cells. Yeast-beta-D-glucan stimulates the activity of macro-phages, the white blood cells, which are responsible for the elimination of bacterial infections.

yeast is also thought to improve the elasticity of the skin, and is used in many cosmetics. There are no reports of adverse reactions with the aid of yeast. Yeast May even increase the effectiveness of antibiotic treatments for acne.

Read What Causes Acne? Robert Rister is the author or co-author of nine books on natural health including the critically acclaimed Complete German Commission E Monographs and Healing without Medication.

Article Source: http://EzineArticles.com/?expert=Robert_Rister

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