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. 2025 Aug 26;12:1658507. doi: 10.3389/fnut.2025.1658507

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Copyright © 2025 Ye, Liu, You, Han, Zhang and Lei.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Stacked bar chart showing change in incidence in China due to aging, epidemiological change, and population. Aging is red, epidemiological change is blue, and population is green. Total impact is labeled as "Both." — Decomposition analysis of vitamin A deficiency incidence in China, 1990–2021.