Recent Trends in Use of Herbal and Other Natural Products

Background

The benefits of herbal and other natural products (dietary supplements) are increasingly cited in the media. Dramatic increases in use reported during the last decade have led to growing concerns about efficacy and safety.


Methods

To determine which dietary supplements American adults use, whether the prevalence has continued to increase in recent years, and whether popularity of individual supplements has changed, demographic information and details of use of all medicines and dietary supplements in the preceding week were obtained by telephone interview from February 1998 through December 2002 from households in 48 contiguous states and the District of Columbia. Participants included randomly selected residents of households with telephones; compared with 2000 US Census data, participants were representative of the US population. The main outcome measure was the weekly prevalence of dietary supplement use, alone or in a multicomponent product.

Results 

There were 8470 subjects 18 years or older. The annual prevalence of dietary supplement use increased from 14.2% in 1998-1999 to 18.8% in 2002. Although use did not change among younger subjects, it doubled for men and women 65 years or older. Use of Ginkgo biloba and Panax ginseng declined during the study, while lutein use increased dramatically, because of its addition to multivitamin products. The overall 2002 prevalence excluding lutein use was 13.9%.

Conclusions 

The popularity of specific supplements has varied over time and differs according to age and sex. The sharp increase in supplement use in the 1990s appears to have slowed. However, the addition of supplements, such as lutein and lycopene, to mainstream multivitamins has become an important source of exposure.

The use of alternative medicines in the United States, particularly herbal products, increased dramatically during the last decade.¹ In 2001 alone, Americans spent $4.2 billion on herbs and other botanical remedies.² Although this issue now receives considerable attention in the medical and lay press, few details about the frequency and nature of use of herbal and other natural products (herein referred to as dietary supplements) have been published. Because such information is important to the clinical and research communities, we examined recent trends in the use of dietary supplements, using data from the Slone Survey, a telephone survey of a random sample of the US population that has been ongoing since 1998. Individual vitamins and minerals are not considered in this report.

Sorce : http://archinte.jamanetwork.com/article.aspx?articleid=486402#RESULTS

Author : Judith P. Kelly, MS; David W. Kaufman, ScD; Katherine Kelley, RPh; Lynn     Rosenberg, ScD; Theresa E. Anderson, RN; Allen A. Mitchell, MD

Author affiliation : Slone Epidemiology Center, Boston University School of Public Health, Boston, Mass. Arch Intern Med. 2005;165(3):281-286. doi:10.1001/archinte.165.3.281