Abstract: Breast milk does not provide adequate amount of nutrient for infant beyond six month of age.
Malnutrition during infancy, an endemic public health nutritional challenge in Africa at large and Nigeria in
particular, presents proportionate health challenges during adulthood. Such nutritional challenges do not only
arise from inadequate intake of food nutrients, but also poor absorption that lead poor efficiency ratio.
Therefore, the amount of selected dietary elements obtained from a legume-cereal based complementary food
required to bring about a unit growth was studied in 45 Male Wistar-strain weaning rats weighing 40 - 55g. The
result showed that CF has a significantly higher PER when compared with a proprietary complementary
formula. N, P, K, Na, Ca, Fe, Cu, Mg, Mn, Zn obtained from CF are of high efficiency ratio. Also, it was
observed that the animals placed on CF showed higher weight gain than those placed on BF. This suggests that
locally sourced foodstuff of the kinds used in this study could be used to formulated complementary food with
high PER and appreciable MER that could also support healthy growth and development in infants.
Keywords: Mineral efficiency Ratio, Protein Efficiency Ratio, Complementary Food, Bioavailability, Dietary