Evidence-based cost-benefit analysis of Vitamin a.
Vitamin A is essential for maintaining healthy vision, immune function, and skin health. It plays a critical role in the formation of rhodopsin, a protein in the eyes that helps with low-light vision. Supplementation has been shown to improve vitamin A status in deficient populations, particularly in children, thereby reducing the risk of xerophthalmia and other related deficiencies.
Children, particularly those under five years of age, and individuals in regions with high prevalence of vitamin A deficiency (VAD) would benefit most from this supplement. This includes populations in developing countries where dietary intake of vitamin A is inadequate.
Excessive intake of vitamin A can lead to toxicity, with symptoms including nausea, headache, dizziness, and even liver damage. It is important to consider potential interactions with other medications and to avoid high doses unless prescribed by a healthcare professional. Individuals with liver disease or those who are pregnant should consult a healthcare provider before starting supplementation.
Compare other supplements by cost and evidence
Educational and research purposes only. Always consult a healthcare professional before starting any supplement regimen. ROI is modelled at $100,000 per quality-adjusted life year; see the methodology.