Variation in crop zinc concentration influences estimates of dietary Zn inadequacy

Autor: Rachel Hestrin, Leah E.M. Bevis
Rok vydání: 2020
Předmět:
Male
0301 basic medicine
Flour
010501 environmental sciences
01 natural sciences
Toxicology
Medicine and Health Sciences
Uganda
Micronutrients
Minerals
Multidisciplinary
Dietary intake
Eukaryota
food and beverages
Agriculture
Food composition data
Plants
Micronutrient
Zinc
Experimental Organism Systems
Child
Preschool
Medicine
Female
Nutritive Value
Research Article
Crops
Agricultural
Farms
Millet
Science
Nutritional Status
chemistry.chemical_element
Crops
Biology
Research and Analysis Methods
Crop
03 medical and health sciences
Model Organisms
Nutritional Interventions
Plant and Algal Models
Zinc deficiency (plant disorder)
Humans
Grasses
Sorghum
Nutrition
0105 earth and related environmental sciences
Cassava
030109 nutrition & dietetics
Food frequency
Organisms
Infant
Biology and Life Sciences
Diet
Maize
Nutrition Assessment
chemistry
Food
Animal Studies
Shrubs
Crop Science
Cereal Crops
Zdroj: PLoS ONE, Vol 15, Iss 7, p e0234770 (2020)
PLoS ONE
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0234770
Popis: BackgroundZinc (Zn) deficiency is one of the most common micronutrient deficiencies worldwide. Accurate estimates of Zn intake would facilitate the design and implementation of effective nutritional interventions.ObjectiveWe sought to improve estimates of dietary Zn intake by evaluating staple crop Zn content and dietary Zn consumption by children under the age of 5 in 9 rural districts of Uganda.MethodsWe measured the Zn content of 581 crop samples from household farms and 167 crop samples from nearby markets, and administered food frequency questionnaires to the primary caretakers of 237 children. We estimated Zn consumption using 3 sources of crop Zn content: (i) the HarvestPlus food composition table (FCT) for Uganda, (ii) measurements from household crops, and (iii) measurements from market crops.ResultsThe Zn content of staple crops varied widely, resulting in significantly different estimates of dietary Zn intake. 41% of children appeared to be at risk when estimates were based on market-sampled crops, 23% appeared at risk when estimates were based on the HarvestPlus FCT, and 16% appeared at risk when estimates were based on samples from household farms.ConclusionThe use of FCTs to calculate Zn intake overestimated the risk of dietary inadequacy for children who primarily consumed staple crops that were produced on household farms, but underestimated the risk for children who primarily consumed staple crops that were purchased at market. More information on the Zn content of staple crops in developing countries could lead to more accurate estimates of dietary intake and associated deficiencies.
Databáze: OpenAIRE
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