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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.

Tuesday, April 8, 2008

Health And Fitness Audio Books - Convenient, Motivational And Educational

If you have decided it's finally time for you to healthy audio books can help you. Perhaps you are trying to kick some bad habits, such as poor diet, lack of exercise or smoking, or do you need help with health issues, audio books can be used in all these areas. You can learn the proper foods to eat and tips to lose weight and quit smoking among other areas of interest.

Look on the catalogs to see the health and fitness routines are right for you. They offer a combination of CDs, videos on tape or DVD in the form of interactive workbooks so that you finished with your weight loss issues for the long term. How can you healthy audiobooks show the tips and tricks of professional staff trainer in a proven program, which is with your mental, physical and spiritual needs.

These health and fitness audiobooks features tips on how to stay motivated and information on the A fitness work schedule, your lifestyle, how small changes in diet to keep such a positive attitude. Physical and mental health go hand in hand and yoga is the perfect activity and relax your spirit and your body, simultaneously.

A variety of audio yoga titles can be found in how to keep fit audiobooks. These programs include three different routines: energy, sound and sweat, and are available on VHS and DVD. Whether you are interested in the visual or the sounds of yoga, you are obliged to find what you are looking for.

There also raises many of the health topics ranging from health and natural vegan cook bodybuilding and medical information, by the health and fitness area to find podcast podcasts of motivation speaker offer to help the audience to their diet and exercise goals, and topics range from carbohydrates and protein to natural remedies like aromatherapy.

You should also free audio programs, the different types of cancers of the lung and liver, bladder and esophageal cancer. These programs are also available free for download sometimes. These health and fitness audio books teach you how to keep fit through rapid and effective learning process for calm concerns and the reduction of stress and anger and wake up your creative and intuitive potential.

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

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