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Impact of Front-of-Pack Nutrition Labelling on Consumer Food Choices among Adults in Nigeria

Abstract

Front-of-pack nutrition labelling (FOPNL) has emerged as an important public health strategy for helping consumers understand the nutritional composition of packaged foods and make healthier food choices. Packaged foods may contain high levels of sugar, sodium, saturated fat, and calories, and consumers may experience difficulty interpreting conventional nutrition information because of technical terminology, small print, complex nutrient tables, and limited nutrition literacy. Front-of-pack labels provide simplified nutritional information on the main surface of food packages and may help consumers quickly identify healthier or less healthy products. In Nigeria, increasing consumption of processed and packaged foods, together with the growing burden of diet-related non-communicable diseases, highlights the importance of accessible nutrition information for consumers. Against this background, this study investigates the impact of front-of-pack nutrition labelling on consumer food choices among adults in Nigeria. The study will be anchored on the Health Belief Model, Theory of Planned Behavior, and Health Literacy Framework. The Health Belief Model explains how consumers' perceptions of the health risks associated with unhealthy diets, perceived benefits of healthier food choices, perceived barriers, and cues to action may influence their responses to nutrition labels. The Theory of Planned Behavior explains how attitudes toward healthy foods, subjective norms, and perceived behavioural control influence consumers' intentions and actual food choices. The Health Literacy Framework emphasizes consumers' ability to access, understand, evaluate, and apply nutrition information when making food-related decisions. Collectively, these theoretical perspectives provide a suitable framework for explaining how front-of-pack nutrition labelling may influence consumer food choices among adults in Nigeria. The study will adopt a quantitative quasi-experimental or analytical cross-sectional research design. The study population will comprise adults aged 18 years and above who purchase or consume packaged food products in selected urban and rural communities across Nigeria. A multistage sampling technique will be used to select geopolitical zones, states, local government areas, communities, markets, supermarkets, retail outlets, and eligible adult consumers. Front-of-pack nutrition labelling will be assessed using indicators such as visibility, clarity, simplicity, readability, comprehensibility, perceived credibility, nutrient information, warning or interpretive symbols where applicable, and consumers' ability to identify products with high levels of nutrients of public health concern. Consumer food choices will be assessed using indicators such as selection of healthier food products, preference for products lower in sugar, sodium, and saturated fat, comparison of similar products before purchase, frequency of reading food labels, willingness to purchase labelled products, avoidance of products perceived as unhealthy, and overall food-selection patterns. Data will be collected using structured questionnaires, nutrition-label interpretation tests, simulated or actual food-purchasing tasks, food-choice assessment instruments, and relevant food-label information. Descriptive statistics will be used to summarize participants' characteristics, exposure to front-of-pack labels, nutrition knowledge, and food-choice patterns. Inferential statistical techniques, including chi-square tests, t-tests, correlation analysis, and logistic or multiple regression analysis where appropriate, will be used to determine the impact of front-of-pack nutrition labelling on consumer food choices. Where a quasi-experimental design is adopted, food-choice patterns before and after exposure to standardized front-of-pack labels may be compared to determine changes associated with the intervention. Diagnostic tests will also be conducted to assess the reliability, validity, and robustness of the findings. The study is expected to find that front-of-pack nutrition labelling has a significant positive impact on healthier consumer food choices among adults in Nigeria. Adults exposed to clear and easy-to-understand front-of-pack nutrition labels are expected to demonstrate greater ability to identify healthier and less healthy packaged foods and may be more likely to select products with lower levels of sugar, sodium, and saturated fat. Simplified labels may reduce the time and effort required to interpret conventional nutrition information and may encourage consumers to compare products before making purchasing decisions. However, factors such as food prices, taste preferences, brand loyalty, nutrition knowledge, health literacy, income, availability of healthier alternatives, and limited understanding of nutrition information may influence the extent to which consumers respond to front-of-pack labels. The study therefore expects clear, standardized, credible, and consumer-friendly front-of-pack nutrition labelling to contribute significantly to healthier food choices among adults in Nigeria. The study is expected to contribute to the literature on front-of-pack nutrition labelling, consumer food choices, nutrition literacy, food labelling, healthy eating, nutrition education, diet-related non-communicable disease prevention, consumer behaviour, and public health in Nigeria. The findings will provide useful information to the Federal Ministry of Health and Social Welfare, National Agency for Food and Drug Administration and Control, Standards Organisation of Nigeria, food manufacturers, retailers, nutritionists, dietitians, consumer protection organizations, public health practitioners, development partners, and policymakers regarding strategies for improving nutrition information on packaged foods. The study will also provide evidence-based recommendations for strengthening front-of-pack nutrition labelling standards, improving label readability and comprehension, increasing public nutrition literacy, encouraging healthier food choices, supporting consumer education, and promoting food environments that contribute to the prevention of diet-related non-communicable diseases in Nigeria.

Keywords: Front-of-pack nutrition labelling, consumer food choices, nutrition labelling, nutrition literacy, healthy eating, packaged foods, consumer behaviour, food choices, non-communicable disease prevention, adults, Nigeria, public health.