Adherence
Standard numerical nutrition labels are insufficient for accurate consumer assessment of nutrient levels, whereas the addition of interpretational aids (verbal descriptors and reference values) significantly improves the accuracy of product comparison and dietary context assessment.
When shopping, rely on labels that include simple verbal descriptors (like 'High' or 'Low' fat) and reference values (like Guideline Daily Amounts) rather than just raw numbers. These aids help you accurately compare products and understand how a single item fits into your daily diet, especially if you are older or have lower nutrition knowledge. Standard numerical-only labels are often too confusing for accurate decision-making.
Available evidence suggests that consumers who do look at nutrition labels can understand some of the terms used but are confused by other types of information... The addition of interpretational aids like verbal descriptors and recommended reference values helps in product comparison and in putting products into a total diet context.
Why this rating
The review includes 103 papers but notes that only 9 were high/medium-high quality and many relied on self-reported measures rather than objective behavioral data.
Source
Consumer understanding and use of nutrition labelling: a systematic review
Gill Cowburn et al. · Public Health Nutrition · 2005
DOI 10.1079/phn2004666
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