Abstract
Micronutrient deficiencies are a public health concern among young children in low-income countries, and novel strategies are needed to improve the nutritional status of children at risk. One promising approach is the use of lipid-based nutrient supplements (LNS), which can be added to complementary food at the time of consumption. The optimal amount of zinc to include in LNS is uncertain, and concerns have been expressed about possible adverse effects of zinc on sensory characteristics of LNS. We conducted a series of acceptability studies of LNS containing either 0 or 10 mg of zinc per daily 20 g LNS dose among Burkinabe children 9-15 months old and their mothers. These acceptability studies included observations of children's consumption, maternal and child sensory reaction to the products using a 5-unit hedonic scale, a triangle test for detection of differences and a review of maternal reports of their child-feeding experiences during a 2-week home-feeding trial. The LNS products were well appreciated by the mothers and children during the sensory trials and the 2-week home-feeding trial. The addition of 10 mg zinc to LNS did not affect the consumed proportion of the offered porridge-LNS-mixture (P = 0.43). Results of the triangle test with mothers confirmed that there was no detectable difference between products containing 0 or 10 mg zinc per 20 g LNS dose. Most importantly, interviews and focus groups following the 2-week home-feeding trial indicated good acceptability of the products by mothers and their children.