Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

USDA analytical update for vitamins A, D, and E

Phillips, K.M. et al.

2019

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Summary

This paper, published in the Journal of AOAC International, presents revised analytical data for vitamins A, D, and E across selected food items, updating values held in USDA nutrient composition databases. The work likely employs current reference analytical methods (such as HPLC) to improve the accuracy of nutrient data used in dietary surveillance, food labelling, and nutritional research. Such updates are significant for recalibrating population-level nutrient intake estimates and informing regulatory nutrient reference values.

UK applicability

The study is US-specific in its database context, but the analytical methodology and revised nutrient values are broadly relevant to UK food composition work, including updates to McCance and Widdowson's food composition tables and dietary survey interpretation by Public Health England and its successors.

Key measures

Vitamin A (retinol activity equivalents, µg RAE/100g); vitamin D (µg/100g); vitamin E (mg alpha-tocopherol/100g); comparison with previous USDA database values

Outcomes reported

The study reports updated analytical values for vitamins A, D, and E in a range of foods, likely drawing on improved laboratory methods to revise entries in USDA nutrient databases. It assesses the implications of these updated values for dietary assessment and food labelling.

Theme
Measurement & metrics
Subject
Food composition & nutrient measurement
Study type
Research
Study design
Analytical laboratory study
Source type
Peer-reviewed study
Status
Published
Geography
United States
System type
Food supply chain
Catalogue ID
XL0986

Topic tags

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