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A Framework for Developing Intake and Use Guidance for Dietary Supplement Bioactives.

Janet A Novotny1, Johanna Dwyer2, Mario G Ferruzzi3

  • 1Beltsville Human Nutrition Research Center, Agriculture Research Center, USDA, Beltsville, MD, United States.

Advances in Nutrition (Bethesda, Md.)
|March 27, 2026
PubMed
Summary
This summary is machine-generated.

Developing intake guidance for dietary supplements requires a framework that considers dose, purity, and bioavailability. This approach ensures safety and efficacy for bioactive constituents, differentiating them from food sources.

Keywords:
bioactive substancesbioactivesdietary ingredientsdietary supplementsrecommendationsrisk

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Area of Science:

  • Nutritional Science
  • Pharmacology
  • Food Science

Background:

  • Dietary bioactives offer health benefits beyond basic nutrition but lack clear intake guidelines.
  • Existing frameworks for food-based bioactives do not fully address supplements' unique properties.
  • Limited guidance on supplement bioactives challenges informed consumer choices and safety.

Purpose of the Study:

  • To adapt a previous framework for developing intake recommendations for dietary bioactives in supplements.
  • To address unique factors like dose, matrix, purity, bioavailability, and intended use for supplement bioactives.
  • To establish evidence-based recommendations for supplement bioactives and clarify differences from food sources.

Main Methods:

  • Building upon a previously published 4-step framework for food bioactives.
  • Incorporating specific considerations for dietary supplements, including dose, matrix, purity, bioavailability, and intended use.
  • Analyzing the distinctions between bioactives from food versus dietary supplements.

Main Results:

  • The adapted framework accounts for the distinct characteristics of bioactives in supplement form.
  • Key factors such as dose, purity, and bioavailability are critical for supplement guidance.
  • Distinctions between food and supplement delivery of bioactives are highlighted.

Conclusions:

  • A modified framework is essential for creating evidence-based intake recommendations for dietary supplement bioactives.
  • Addressing supplement-specific factors ensures appropriate safety and efficacy guidance.
  • This work advances understanding of bioactive constituents in both food and supplement contexts.