Abstract
ABSTRACTBackgroundThe impact of feeding a slightly sweet nutrient supplement early in life on later sweet taste preference is unknown.ObjectiveWe tested the hypothesis that the level of sucrose most preferred by 4–6-y-old children exposed to a slightly sweet lipid-based nutrient supplement (LNS) early in life would not be higher than that of children never exposed to LNS.DesignWe followed up children born to women (n = 1,320) who participated in a randomized trial in Ghana. In one group, LNS was provided to women on a daily basis during pregnancy and the first 6 mo postpartum and to their infants from age 6 to 18 mo (LNS group). The control groups received daily iron and folic acid or multiple micronutrients during pregnancy and the first 6 mo postpartum, with no infant supplementation (non-LNS group). At age 4–6 y, we randomly selected a subsample of children (n = 775) to assess the concentration of sucrose most preferred using the Monell 2-series, forced-choice, paired-comparison tracking procedure. We compared LNS with non-LNS group differences using a noninferiority margin of 5% weight/volume (wt/vol).ResultsOf the 624 children tested, most (61%) provided reliable responses. Among all children, the mean ± SD sucrose solution most preferred (% wt/vol) was 14.6 ± 8.6 (LNS group 14.9 ± 8.7; non-LNS group 14.2 ± 8.4). However, among children with reliable responses, it was 17.0 ± 10.2 (LNS group 17.5 ± 10.4; non-LNS group 16.5 ± 10.0). The upper level of the 95% CI of the difference between groups did not exceed the noninferiority margin in either the full sample or those with reliable responses, indicating that the LNS group did not have a higher sweet preference than the non-LNS group.ConclusionExposure to a slightly sweet nutrient supplement early in life did not increase the level of sweet taste most preferred during childhood. This trial was registered at clinicaltrials.gov as NCT00970866.
Highlights
Evidence suggests that all children are born with the ability to detect sweet tastes [1, 2], and that children prefer higher levels of sweetness than adults [3]
Most child and household characteristics did not differ between children who participated in the study and those who were lost to follow-up (Supplemental Table 1)
Mothers of children who were lost to follow-up were younger, less likely to be married, more likely to be nulliparous prior to the parent trial, and had lower prepregnancy BMI than those who were tested at follow-up
Summary
Evidence suggests that all children are born with the ability to detect sweet tastes [1, 2], and that children prefer higher levels of sweetness than adults [3]. Objective: We tested the hypothesis that the level of sucrose most preferred by 4–6-y-old children exposed to a slightly sweet lipidbased nutrient supplement (LNS) early in life would not be higher than that of children never exposed to LNS. The upper level of the 95% CI of the difference between groups did not exceed the noninferiority margin in either the full sample or those with reliable responses, indicating that the LNS group did not have a higher sweet preference than the non-LNS group. Conclusion: Exposure to a slightly sweet nutrient supplement early in life did not increase the level of sweet taste most preferred during childhood. This trial was registered at clinicaltrials.gov as NCT00970866.
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