Dietary Supplement Use and Public Health Implications

Dietary supplements—encompassing vitamins, minerals, botanicals and other bioactive compounds—have become a widespread component of health maintenance and disease prevention strategies worldwide. Their appeal rests on perceived benefits ranging from filling nutritional gaps to enhancing immunity and supporting healthy ageing. However, divergent regulatory frameworks, varied quality control standards and inconsistent consumer knowledge create challenges for safe and effective use. At a population level, supplements can contribute to micronutrient adequacy in groups with limited dietary diversity, yet they also carry the risk of excessive intakes when consumption exceeds established safe thresholds. Patterns of use differ by age, sex, socioeconomic status and cultural context, emphasising the need for targeted education and surveillance. From a public health perspective, harmonised definitions and standardised assessment tools are essential to monitor consumption trends, evaluate health outcomes and guide regulatory policies. Strategic integration of supplement data into national nutrition surveys and electronic health records would improve the evidence base for policy makers, clinicians and consumers alike.

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Dietary Supplement Use and Public Health Implications publication trend

The graph below shows the total number of articles in dietary supplement use and public health implications across all publications each year (not limited to Nature Index journals).

Technical terms

Dietary supplement: Concentrated source of nutrients or bioactive substances intended to complement the normal diet.

Micronutrient: Essential vitamin or mineral required in small amounts for growth, development and metabolic function.

Tolerable Upper Intake Level (UL): Maximum daily intake of a nutrient that is unlikely to cause adverse health effects in the general population.

Prevalence: Proportion of a defined population using a particular dietary supplement at a specified time.

Cross-sectional study: Observational research design analysing data collected from subjects at one specific point in time.

References

1. Major Gaps in Understanding Dietary Supplement Use in Health and Disease. Annual Review of Nutrition (2023).
2. Prevalence, knowledge, awareness, and attitudes towards dietary supplements among Bahraini adults: a cross-sectional study. Food Production, Processing and Nutrition (2023).
3. Dietary supplements increase the risk of excessive micronutrient intakes in Danish children. European Journal of Nutrition (2023).
4. Dietary Supplements: Regulatory Challenges and Research Resources. Nutrients (2018).