Summary
This paper, published in the Annual Review of Nutrition, provides a comprehensive narrative review of vitamin A and carotenoids, covering their biochemistry, dietary sources, bioavailability, and public health significance. Thorne-Lyman and Fawzi, researchers with expertise in global nutrition, likely synthesise evidence on the consequences of deficiency — particularly in low- and middle-income settings — alongside the role of carotenoids as provitamin A precursors. The review would be expected to address intervention evidence and remaining gaps in understanding of carotenoid conversion and health impacts.
UK applicability
The review's global scope and focus on deficiency in low-income populations limits direct applicability to UK clinical practice, though its synthesis of carotenoid bioavailability and dietary reference frameworks is broadly relevant to UK nutrition policy and dietary guidance.
Key measures
Vitamin A status indicators (serum retinol); carotenoid intake and bioavailability; mortality risk; infection-related morbidity; deficiency prevalence
Outcomes reported
The review examines the physiological roles, dietary sources, and health consequences of vitamin A and carotenoid status, likely covering deficiency, toxicity, and associations with mortality, infection, and chronic disease outcomes.
Topic tags
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