Effect of locally produced complementary foods on fat-free mass, linear growth and iron status among Kenyan infants: a randomized controlled trial

TY - JOUR

T1 - Effect of locally produced complementary foods on fat-free mass, linear growth and iron status among Kenyan infants

T2 - a randomized controlled trial

AU - Konyole, Silvenus O

AU - Omollo, Selina A

AU - Kinyuru, John N

AU - Skau, Jutta K H

AU - Owuor, Bethwell O

AU - Estambale, Benson B

AU - Filteau, Suzanne M

AU - Michaelsen, Kim F.

AU - Friis, Henrik

AU - Roos, Nanna

AU - Owino, Victor O

N1 - This article is protected by copyright. All rights reserved.

PY - 2019/10/1

Y1 - 2019/10/1

N2 - The impact of quality complementary food products on infant growth and body composition has not been adequately investigated. This study evaluated the effect on fat-free mass (FFM) accrual, linear growth, and iron status of locally produced complementary food products comparing to a standard product. In a randomized, double-blind trial, 499 infants at 6 months received nine monthly rations of (a) WinFood Classic (WFC) comprising germinated amaranth (71%), maize (10.4%), small fish (3%), and edible termites (10%); (b) WinFood Lite (WFL) comprising germinated amaranth (82.5%), maize (10.2%), and multimicronutrient premix; or (c) fortified corn–soy blend plus (CSB+). Primary outcomes were changes in FFM, length, and plasma ferritin and transferrin receptors (TfR). FFM was determined using deuterium dilution. Analysis was by intention to treat, based on available cases. Compared with CSB+, there were no differences in change from 6 to 15 months in FFM for WFC 0.0 kg (95% CI [−0.30, 0.29]) and WFL 0.03 kg (95% CI [−0.25, 0.32]) and length change for WFC −0.3 cm (95% CI [−0.9, 0.4]) and WFL −0.3 cm (95% CI [−0.9, 0.3]). TfR increased in WFC group 3.3 mg L−1 (95% CI [1.7, 4.9]) and WFL group 1.7 mg L−1 (95% CI [0.1, 3.4]) compared with CSB+. Compared with the increase in Hb in CSB+ group, there was a reduction in Hb in WFC of −0.9 g dl−1 (95% CI [−1.3, −0.5]) and a lower increase in WFL −0.4 g dl−1 (95% CI [−0.8, 0.0]). In conclusion, the tested WinFoods had the same effect on FFM and length as CSB+, whereas Hb and iron status decreased, suggesting inhibited iron bioavailability from the amaranth-based WinFoods.

AB - The impact of quality complementary food products on infant growth and body composition has not been adequately investigated. This study evaluated the effect on fat-free mass (FFM) accrual, linear growth, and iron status of locally produced complementary food products comparing to a standard product. In a randomized, double-blind trial, 499 infants at 6 months received nine monthly rations of (a) WinFood Classic (WFC) comprising germinated amaranth (71%), maize (10.4%), small fish (3%), and edible termites (10%); (b) WinFood Lite (WFL) comprising germinated amaranth (82.5%), maize (10.2%), and multimicronutrient premix; or (c) fortified corn–soy blend plus (CSB+). Primary outcomes were changes in FFM, length, and plasma ferritin and transferrin receptors (TfR). FFM was determined using deuterium dilution. Analysis was by intention to treat, based on available cases. Compared with CSB+, there were no differences in change from 6 to 15 months in FFM for WFC 0.0 kg (95% CI [−0.30, 0.29]) and WFL 0.03 kg (95% CI [−0.25, 0.32]) and length change for WFC −0.3 cm (95% CI [−0.9, 0.4]) and WFL −0.3 cm (95% CI [−0.9, 0.3]). TfR increased in WFC group 3.3 mg L−1 (95% CI [1.7, 4.9]) and WFL group 1.7 mg L−1 (95% CI [0.1, 3.4]) compared with CSB+. Compared with the increase in Hb in CSB+ group, there was a reduction in Hb in WFC of −0.9 g dl−1 (95% CI [−1.3, −0.5]) and a lower increase in WFL −0.4 g dl−1 (95% CI [−0.8, 0.0]). In conclusion, the tested WinFoods had the same effect on FFM and length as CSB+, whereas Hb and iron status decreased, suggesting inhibited iron bioavailability from the amaranth-based WinFoods.

KW - Faculty of Science

KW - Body composition

KW - Deuterium dilution technique

KW - Animal-source foods

KW - Complementary feeding

KW - Iron status

KW - Edible termites

U2 - 10.1111/mcn.12836

DO - 10.1111/mcn.12836

M3 - Journal article

C2 - 31045329

SN - 1740-8695

VL - 15

JO - Maternal and Child Nutrition

JF - Maternal and Child Nutrition

IS - 4

M1 - e12836

ER -