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Iron-biofortified pearl millet consumption increases physical activity in Indian adolescent schoolchildren after a 6-month randomised feeding trial.

Authors
  • Pompano, Laura M1, 2
  • Luna, Sarah V1
  • Udipi, Shobha A3
  • Ghugre, Padmini S3
  • Przybyszewski, Eric M1
  • Haas, Jere1
  • 1 Cornell University, Savage Hall, Ithaca, NY14853, USA.
  • 2 HarvestPlus, International Food Policy Research Institute, 1201 I St NW, Washington, DC 20005USA.
  • 3 S.N.D.T. Women's University, 1, Nathibai Thackersey Road, Mumbai400020, India. , (India)
Type
Published Article
Journal
British Journal Of Nutrition
Publisher
Cambridge University Press
Publication Date
Apr 14, 2022
Volume
127
Issue
7
Pages
1018–1025
Identifiers
DOI: 10.1017/S000711452100180X
PMID: 34078482
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Fe deficiency has negative effects on voluntary physical activity (PA); however, the impact of consuming Fe-biofortified staple foods on voluntary PA remains unclear. This study compared the effects of consuming Fe-biofortified pearl millet or a conventional pearl millet on measures of voluntary PA in Indian schoolchildren (ages 12-16 years) during a 6-month randomised controlled feeding trial. PA data were collected from 130 children using Actigraph GT3X accelerometers for 6 d at baseline and endline. Minutes spent in light and in moderate-to-vigorous PA were calculated from accelerometer counts using Crouter's refined two-regression model for children. Mixed regression models adjusting for covariates were used to assess relationships between intervention treatment or change in Fe status and PA. Children who consumed Fe-biofortified pearl millet performed 22·3 (95 % CI 1·8, 42·8, P = 0·034) more minutes of light PA each day compared with conventional pearl millet. There was no effect of treatment on moderate-to-vigorous PA. The amount of Fe consumed from pearl millet was related to minutes spent in light PA (estimate 3·4 min/mg Fe (95 % CI 0·3, 6·5, P = 0·031)) and inversely related to daily sedentary minutes (estimate -5·4 min/mg Fe (95 % CI -9·9, -0·9, P = 0·020)). Consuming Fe-biofortified pearl millet increased light PA and decreased sedentary time in Indian schoolchildren in a dose-dependent manner.

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