Understanding how the psychosocial environment can promote or inhibit the benefit of supplementation intervention is necessary in order to have a better way of setting about providing supplements. In fact, many supplementation programs do not incorporate complementary program elements that would help to improve the health and psychosocial development of children at the same time that they improve nutritional status' (Myers, 1995). Looking from this perspective, not only will supplementation benefit the psychosocial development but also the psychosocial environment can promote the benefit of the supplementation on the nutritional status and developmental outcomes of infants.