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Related Experiment Videos

Supplement use: is there any nutritional benefit?

Leticia Troppmann1, Katherine Gray-Donald, Timothy Johns

  • 1School of Dietetics and Human Nutrition, McGill University, St Anne de Bellevue, Quebec, Canada.

Journal of the American Dietetic Association
|June 18, 2002
PubMed
Summary

Dietary supplements can help adults meet nutrient recommendations, particularly for folate, iron, calcium, and vitamin D. However, awareness of Upper Limits for safe intake is crucial, as some users exceed them.

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Area of Science:

  • Nutritional Science
  • Public Health

Background:

  • Dietary Reference Intakes (DRIs) provide guidelines for adequate nutrient consumption.
  • Suboptimal nutrient intake is a concern in adult populations.
  • The role of dietary supplements in meeting these recommendations requires examination.

Purpose of the Study:

  • To investigate how dietary supplements impact total nutrient intake in adults.
  • To assess if supplement use helps individuals meet Recommended Daily Allowances (RDAs) or Adequate Intakes (AIs).

Main Methods:

  • A survey of 1,530 Canadian adults aged 19-65 years was conducted.
  • Dietitian-administered 24-hour recalls assessed dietary and supplement intake.
  • Nutrient intake was analyzed based on supplement type, age, and gender.

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Main Results:

  • Supplement users' food-only intake was similar to non-users, with some below RDAs/AIs for iron, calcium, and folate.
  • Multivitamin users achieved higher folate and iron intakes, meeting RDAs.
  • Calcium supplement users increased calcium intake to AI levels, but some users exceeded Upper Limits for nutrients like niacin.

Conclusions:

  • Dietary supplements are widely used and can aid in meeting DRIs for specific nutrients.
  • Multivitamins and targeted calcium supplements effectively increased intake of key nutrients.
  • Concurrent vitamin D intake is important, and exceeding Upper Limits necessitates caution.