[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-detail-29690":3,"doc-seo-29690":21},{"code":4,"msg":5,"data":6},0,"success",{"doc_id":7,"user_id":8,"nickname":9,"user_avatar":10,"doc_module":4,"category_id":11,"category_name":12,"doc_title":13,"doc_description":14,"file_id":15,"file_url":16,"file_type":17,"file_size":18,"view_count":4,"is_deleted":4,"is_public":19,"is_downloadable":19,"audit_status":19,"update_tm":20},29690,13056703019404,"Miles","https://ap-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0",7,"Healthcare","Global Importance of Vitamin A Deficiency in Humans and Its Relationship to Malnutrition","Vitamin A deficiency (VAD), including clinical and sub-clinical forms, affects about 60 countries and may extend to at least 13 others, with millions of preschool children affected clinically and hundreds of millions affected sub-clinically. The document explains assessment approaches for vitamin A status and emphasizes that VAD interacts synergistically with infections, amplifying harm in settings where poverty and endemic disease persist. Mechanistic links involve epithelial vulnerability and are illustrated through measles, HIV, malaria, and diarrheal disease. General improvements reduce morbidity and mortality, while respiratory disease shows exceptions and research needs for aerosol delivery, mobilization, and absorption. Maternal VAD, breastfeeding, weaning foods, anemia, supplementation, fortification, and sustainable dietary improvements are reviewed, highlighting the role of poverty reduction and infection control.","cbCaii5RDSB22NHT","https://ap.wps.com/l/cbCaii5RDSB22NHT","pdf",501091,1,1778283924,{"code":4,"msg":22,"data":23},"ok",{"site_id":24,"language":25,"slug":26,"title":13,"keywords":27,"description":14,"schema_data":28,"social_meta":62,"head_meta":64,"extra_data":66,"updated_unix":20},105,"en","global-importance-of-vitamin-a-deficiency-in-humans-and-its-relationship-to-malnutrition","",{"@graph":29,"@context":61},[30,47],{"@type":31,"itemListElement":32},"BreadcrumbList",[33,37,41,44],{"item":34,"name":35,"@type":36,"position":19},"https://docshare.wps.com","Home","ListItem",{"item":38,"name":39,"@type":36,"position":40},"https://docshare.wps.com/document/","Document",2,{"item":42,"name":12,"@type":36,"position":43},"https://docshare.wps.com/document/healthcare/",3,{"item":45,"name":13,"@type":36,"position":46},"https://docshare.wps.com/document/global-importance-of-vitamin-a-deficiency-in-humans-and-its-relationship-to-malnutrition/29690",4,{"url":45,"name":13,"@type":48,"author":49,"headline":13,"publisher":51,"fileFormat":54,"description":14,"dateModified":55,"datePublished":55,"encodingFormat":54,"isAccessibleForFree":56,"interactionStatistic":57},"DigitalDocument",{"name":9,"@type":50},"Person",{"url":34,"name":52,"@type":53},"DocShare","Organization","application/pdf","2026-05-08",true,{"@type":58,"interactionType":59,"userInteractionCount":4},"InteractionCounter",{"@type":60},"ViewAction","https://schema.org",{"og:url":45,"og:type":63,"og:title":13,"og:site_name":52,"og:description":14},"article",{"robots":65,"canonical":45},"index,follow",{"doc_id":7,"site_id":24}]