Abstract
Background: Infants care and feeding practices have a major effect on short term and long term nutritional status of children as most of malnutrition is associated with faltering growth that occur during the period complementary feeding.
 Objective: This study aimed to evaluate the nutrients and antioxidants composition of complementary food produced from brown local rice, soybean and tiger nut supplemented with orange fleshed sweet potato
 Materials and methods: Raw materials and other ingredients used for this study were purchased from Ojakoko in Owo Local Government, Ondo State. Four samples were formulated using brown local rice, soyabean, tigernut and orange flesh sweet potato in different ratios (70:60:50:40, 20:20: 20:20, 5:10:15:20, and 5:10:15:20), respectively. The samples were labeled as RSTO1, RSTO2, RSTO3, and RSTO4. A commercial food was used as control (D). Samples were subjected to chemical analysis according to standard methods. The data obtained were statistically analyzed using Statistical Package for Social Science (SPSS version 22). ANOVA was used to test for the significant difference among means at P<0.05.
 Results: Finding shows that moisture, crude fibre, fat and protein were significantly (p<0.05) higher in sample RSTO3 but, protein content was lower than the value in the control Sample RSTO1 had the highest carbohydrate and ash content among the samples. Vitamin B3, B6 and B9 are significantly (p<0.05) higher in Sample RSTO4, RSTO3, andRSTO1. All the samples have appreciable amount of beta-carotene, flavonoid, total phenol, sodium, calcium and potassium. Sample RSTO3 was exceptionally high in minerals but significantly (p<0.05) lower than that of the control except for copper and magnesium. 
 Conclusion: The formulated complementary foods had improved nutrients and antioxidants which can support optimal growth of undernourished children and other age-groups.
Highlights
The significance of introducing infants to nutritious complementary food cannot be underestimated as such require a devoted mechanism that involves a proper combination of locally inexpensive and readily available cereal-legume-based to provide quality protein and other nutrients
This study aimed to evaluate the nutrients and antioxidants composition of complementary food produced from brown local rice, soybean and tiger nut supplemented with orange-fleshed sweet potato Materials and methods: Raw materials and other ingredients used for this study were purchased from Ojakoko in Owo Local Government, Ondo State
The ash content of the samples ranged from 3.77% to 4.39% with sample RSTO1 (4.39%) having the highest value while sample RSTO4 had the least value of ash content
Summary
The significance of introducing infants to nutritious complementary food cannot be underestimated as such require a devoted mechanism that involves a proper combination of locally inexpensive and readily available cereal-legume-based to provide quality protein and other nutrients. In view of these nutritional challenges, quite a number of studies have investigated ways of formulating quality complementary foods through a combination of available plant-based foods to meet the nutritional needs of infants and under-five children [1,2]. Four samples were formulated using brown local rice, soyabean, Tigernut, and orange flesh sweet potato in different ratios (70:60:50:40, 20:20: 20:20, 5:10:15:20, and 5:10:15:20), respectively. Conclusion: The formulated complementary foods had improved nutrients and antioxidants which can support optimal growth of undernourished children and other age groups
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