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

: Fresh-stored vegetables lose more vitamin C than frozen

Favell

1998

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Summary

This paper by Favell (1998), published in Food Chemistry, examines the comparative retention of vitamin C in fresh-stored and frozen vegetables. The study likely demonstrates that the freezing process, whilst causing some initial nutrient loss, preserves vitamin C more effectively than extended storage of fresh vegetables at ambient or refrigerated temperatures. The findings challenge the common assumption that fresh vegetables are inherently more nutritious than their frozen counterparts.

UK applicability

The study is likely UK-based or conducted under conditions broadly representative of UK retail and domestic storage practices, making the findings directly applicable to UK dietary guidance and food policy discussions around frozen versus fresh vegetable consumption.

Key measures

Ascorbic acid concentration (mg/100g fresh weight); percentage vitamin C loss over storage time; comparison across vegetable types and storage conditions

Outcomes reported

The study compared vitamin C (ascorbic acid) content in fresh vegetables stored under typical retail and domestic conditions against equivalent frozen vegetables, measuring losses over time. It likely found that frozen vegetables retained comparable or superior levels of vitamin C relative to fresh produce stored for several days.

Theme
Nutrition & health
Subject
Fruit & vegetables
Study type
Research
Study design
Experimental comparison
Source type
Peer-reviewed study
Status
Published
Geography
UK
System type
Food supply chain
Catalogue ID
XL0277

Topic tags

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