Rise in Supplement Use

Rise in Supplement Use by U.S. Adults

Researchers from the Centers for Disease Control and Prevention (CDC) and the National Institute’s of Health (NIH) have found dietary supplement use has grown since the National Health and Nutrition Examination Survey III (NHANES III, 1988-1994), including specific growth in use of calcium, vitamin D, folic acid and multivitamin supplements. In this latest report, the researchers noted dietary supplement use in adults aged 20 and over is widespread, and the percentage of the U.S. population that has used at least one multivitamin/mineral product rose from 43 percent in NHANES III to 53 percent in the current analysis period of 2003-2006. The researchers, a combination of CDC National Center on Health Statistics (NCHS), NIH Office of Dietary Supplements (ODS) and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDKD) scientists, concluded the increased supplement usage should fact or into any surveys or analyses of nutrient intake in the U.S. population, especially relative to intakes above recommended levels.

Multivitamin/mineral products—defined as dietary supplements that contain at least three vitamins and may or may not contain minerals—were the most reported supplement in all the NHANES surveys. Usage of this type of supplement rose from 30 percent in NHANES III to 39 percent in the 2003-2006 period, and the usage pattern in the over 20 years adult category represent the patterns for usage of all dietary supplements in that group. Multivitmain/mineral use was more prevalent in women than in men.

Supplements and antacids containing calcium also experienced increased usage, with 1994-2002 growth mostly in women but across all race and ethnicities; after 2002, calcium usage increased primarily in women over 60, with the biggest increase in non-Hispanic white women, followed by Mexican-American women. In women aged 20 to 39, the use of folic acid remained stable from NHANES III through the 2003-2006 period, across all race and ethnicity, although non-Hispanic white women were about twice as likely to take one or more dietary supplements containing folic acid than were both non-Hispanic black and Mexican-American women.The growing awareness and popularity of vitamin D was reflected in the report, as researchers found while usage rates were stable in the 20 to 39 age group, across gender, there was an overall small increase in the 40 to 59 age group since NHANES III, across gender, and a significant increase in usage among women aged 60 and over, through 2006.The report is available at the CDC's NCHS website

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