Abstract
<title>Abstract</title> <p> Background The rising incidence of diet-related non-communicable diseases (NCDs), notably obesity and dental caries, presents a profound public health challenge in Low- and Middle-Income Countries (LMICs) like Nigeria. Front-of-pack nutrition labeling is intended to guide informed consumer choices. Although Nigeria's National Agency for Food and Drug Administration and Control (NAFDAC) has launched commendable public health initiatives like the "Read Food Label" campaign, structural variations in baseline reference points can create confusing messaging that misleads even literate, label-reading consumers. Objective This perspective paper exposes regulatory loopholes and behavioral biases driven by structural variations in commercial beverage labeling. It examines the use of voluntary Guideline Daily Amount (GDA) thresholds alongside metric-volumetric serving sizes. Methods Utilizing a dietary intake assessment and risk reduction simulation framework, we evaluated a standard carbonated soft drink formulation (42 kcal and 10.8g total/free sugar per 100 mL) distributed in Nigeria. The analysis evaluated the nutritional profile using the World Health Organization Nutrient Profile Model for the African Region (WHO AFRO NPM). It contrasted a manufacturer's voluntary 250 mL serving size calculation against the actual 330 mL physical container volume, comparing these against the standard 2,000 kcal GDA framework and WHO free sugar recommendations. Results Under the WHO AFRO NPM, the beverage exceeds the threshold for marketing and is classified as "high in added sugars". The voluntary labeling on a 250 mL serving lists 27g of sugars as <bold>29% GDA</bold> (based on an un-harmonized 90g reference value). However, when evaluated against the WHO recommendation that free sugars comprise less than 10% of total energy intake (50g for a 2,000 kcal diet), a single 250 mL serving represents <bold>54% of the daily limit</bold> . When a consumer drinks the full 330 mL container, actual consumption rises to 35.64g of free sugar—representing <bold>71.3% of the WHO daily limit</bold> —while the physical label indicates a lower percentage. Conclusion and Policy Recommendations: Current voluntary GDA metrics can create a misleading impression of lower sugar content, and smaller declared serving sizes can obscure the total nutrients consumed from a single-unit package. Codex Alimentarius guidelines lack a definitive Nutrient Reference Value for Non-Communicable Diseases (NRV-NCD) for free sugars, creating a regulatory gap that allows un-harmonized labels to persist. We recommend that NAFDAC mandate single-unit container labeling based on total package volume, adopt the WHO AFRO NPM criteria, and shift toward interpretive warning labels rather than complex percentage matrices to truly empower the "Read Food Label" initiative. </p>