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Dietary supplement use by U.S. adults is more prevalent than indicated by published data from the
The review article noted that overall supplement use as reported by respondents to the CRN surveys in 2007-2011 ranged from 64 to 69 percent. "Regular" use of dietary supplements ranged from 48 to 53 percent--levels equivalent to the overall prevalence reported in NHANES. The CRN surveys asked regular users whether they used a variety of products or only a multivitamin. Over the five-year period, the percentage of regular users who reported they used a variety of supplements increased, while the percentage that said they used only a multivitamin declined. By 2011, the last of the five years, twice as many regular users said they used a variety of products, compared to those who used only a multivitamin. The primary reasons given for using dietary supplements were "overall health and wellness" and "to fill nutrient gaps in the diet."
In agreement with other research cited in a recent review1, the CRN surveys documented the fact that users of dietary supplements are more likely than nonusers to adopt a variety of healthy habits.
"What the data tells us," said
Dr. Dickinson observed, "The CRN data and NHANES data both indicate that half to two-thirds of American adults use dietary supplements and that their motivation comes from a desire to stay healthy. The evidence suggests that supplement use is viewed as one component of an overall wellness strategy."
The review is titled, "Consumer usage and reasons for using dietary supplements: report of a series of surveys" (
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