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Bioavailability Enhancement: Determination and Conceptual Approaches in Overcoming Bioavailability Problems

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Valorization of the Red Seaweed Gracilaria gracilis Through a Biorefinery Approach

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Nutrient reference values for bioactives: new approaches needed? A conference report.

Hans Konrad Biesalski¹, John W Erdman, John Hathcock

¹University of Hohenheim, Stuttgart, Germany.

European Journal of Nutrition

|March 5, 2013

Summary

Essential nutrients prevent deficiency, while bioactive substances promote optimal health. This conference explores setting Nutrient Reference Values (NRVs) for bioactive compounds like lutein, zeaxanthin, and n-3 fatty acids.

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Area of Science:

Nutritional Science
Public Health

Background:

Nutrients are essential or non-essential (bioactive). Essential nutrient absence causes deficiency; bioactive substance absence leads to suboptimal health.
Regulatory bodies establish Nutrient Reference Values (NRVs), primarily for essential nutrients with recommended daily intakes.
The US Institute of Medicine (IOM) defined Dietary Reference Intakes (DRIs), including Estimated Average Requirement (EAR), Recommended Dietary Allowance (RDA), Adequate Intake (AI), and Tolerable Upper Intake Level (UL).

Framework:

The US derives a Daily Value (DV) from the RDA for food labeling, applicable to most individuals.
Codex Alimentarius uses NRVs equivalent to DVs for food label percentage calculations.
IOM guidelines do not restrict labeling values solely to essential nutrients, as evidenced by the US FDA setting a DV for dietary fiber based on IOM AI.

Implementation:

This conference examines the definitions, concepts, and data for establishing NRVs for specific bioactive substances.
Focus areas include lutein, zeaxanthin, and n-3 long-chain polyunsaturated fatty acids as prime examples for NRV consideration.
The discussion aims to inform regulatory practices regarding the inclusion of bioactive substances in nutritional labeling.

Implications:

Establishing NRVs for bioactive substances can enhance public health by promoting intake of compounds crucial for optimal well-being.
This could lead to more comprehensive nutritional information on food labels, empowering consumers to make informed dietary choices.
Potential for improved public health outcomes through better understanding and intake of vital bioactive compounds.