Supplements of the Year
Sales of dietary supplements are estimated at $9.8 billion a year and growing at a rate of 10 to 12 percent annually. Published research in major medical journals, manufacturer promotions and mainstream media publicity in 1998 introduced many people to herbs and supplements for the first time. Here's a look at the most popular products:
The amino acid tryptophan, which made a comeback in 1998 as 5-hydroxytryptophan, or 5-HTP. The serotonin modulator enhances feelings of peacefulness and contentment.
Glucosamine sulfate, a natural substance found in cartilage that functions as a supporting material and stimulates production of other cartilage constituents.
Alpha-lipoic acid, a powerful antioxidant that also helps recycle other antioxidants.
Vitamin E, which continues to sell well. More medical doctors take vitamin E than aspirin for cardiovascular protection.