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The demand for dietary supplements in the United States catapulted what was once a cottage industry into a $14 billion per year business in the year 2000. In 1994, the U.S. Congress formally defined the term dietary supplement as a product taken by mouth that contains a "dietary ingredient" intended to supplement the diet. The dietary ingredients in these products may include vitamins, minerals, herbs, amino acids, enzymes, organ tissues, glandulars, and metabolites. Dietary supplements can also be extracts or concentrates, and may be found in many forms, such as tablets, capsules, liquids, or powders.
The use of dietary supplements is widespread—they are taken by half of American adults. But the use of supplements is not limited to adults. A study
In 1994 the U.S. Congress passed the Dietary Supplement Health and Education Act (DSHEA), which President Bill Clinton signed into law the same year. One provision of DSHEA clarified the definition for dietary supplements outlined above. DSHEA also mandated the establishment of the Office of Dietary Supplements (ODS) within the National Institutes of Health. The ODS coordinates research on dietary supplements and acts as a clearinghouse for regulatory issues. It also maintains an excellent resource for consumers, the International Bibliographic Information on Dietary Supplements (IBIDS), which is a database that contains citations published in scientific journals on the topic of dietary supplements. The public can access IBIDS on the ODS website.
DSHEA established a new regulatory framework for supplement safety and for the labeling of dietary supplements by the U.S. Food and Drug Administration (FDA). Dietary supplements are regulated under food law, but with certain provisions that apply only to dietary supplements. For example, dietary supplements escape the stringent approval process that food additives and drugs must go through before being marketed to the public, unless the manufacturer of a dietary supplement makes a claim for therapeutic efficacy.
DSHEA also gave manufacturers the freedom to provide information about product benefits on labels through three types of claims. Health claims describe a relationship between a food substance and a disease or health-related condition. For example, the health claim "diets high in calcium may reduce the risk of osteoporosis" has been authorized by the FDA and may appear on the labels of dietary supplements. Structure function claims may state a benefit related to a nutrient-deficiency disease (such as scurvy, which is caused by a deficiency of vitamin C), as long as the statement tells how widespread the disease is. These claims may also describe the role of a nutrient intended to affect a structure or function—for example, "antioxidants maintain cell integrity," or "calcium builds strong bones." Nutrient content claims describe the level of a nutrient or dietary substance in a product, using FDA-regulated terms such as "good source," "high," or "free." For example, if a label claims a dietary supplement is fat-free, the supplement must contain less than 0.5 grams of fat per serving.
Informed, prosperous, and health-conscious, the baby boomers are known as a generation that plans to fight vigorously against the encroachments of age. During the 1990s, as the boomers began reaching their fifties, they increasingly turned to supplements to ward off osteoporosis, memory loss, and a host of other ailments. With increased demand, the vitamins, minerals, and herbs they sought migrated from health food stores to mass merchandisers. Between 1997 and 2002 the supplement industry experienced a 34 percent jump in sales, to more than $19 billion annually.
However, information on supplement labels cannot be false or misleading. For example, statements that a product will treat, cure, or diagnose a disease are reserved for drugs. That is why the label of the popular herbal extract echinacea may boast that the herb "supports good immune function" but will not claim to "cure your cold."
In Germany, herbs and herbal products are regulated in a different way than in the United States. In 1978, the German Federal Health Agency established the German Commission E to investigate the safety and efficacy of herbal remedies commonly used in Germany. The commission weighed evidence from the literature, from anecdotal reports, and from clinical studies. They subsequently developed monographs on over 400 herbs. These monographs are now used worldwide as essential references on herbal therapy. The commission also established indications (how an herb is used medicinally) and dosage recommendations, resulting in the successful mainstreaming of herbs into medical practice. German physicians frequently prescribe the herbs ginkgo biloba, hawthorn, St. John's wort, horse chestnut, and saw palmetto. Unlike U.S. law, German law allows herb manufacturers to market herbs with drug claims if the herb is proven safe and effective.
Author Info: Jackie Shank, The Gale Group Inc., Macmillan Reference USA, New York, Gale Nutrition and Well-Being A to Z, 2004
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