This study aims at evaluating the basic nutritional food value of grains from strategic grain reserve facilities in Nigeria. Of the twenty-two samples analysed, red maize from Lagos State has the highest protein content of 11.84±0.28% followed by millet from Gombe State (10.64±0.60%) and red maize from Minna in Niger State (10.42±0.66%). The protein content for all samples is found to be in the range of 23.92±1.3 to 8.40±0.59%. The carbohydrate content range is 73.87±0.33 to 53.97±3.19%, fat range is 4.87±1.56 to 1.47±0.49%, Crude Fibre range is 4.36±0.47 to 1.59±0.01%, ash content range is 3.56±0.11 to 1.21±0.30 and Moisture content range is 17.23±0.50 to 10.33±0.37. All maize, sorghum and millet samples were found to contain appreciable levels of carbohydrate, while the cowpea samples have high levels of protein. From the analysis, the grain samples were found to meet the minimum requirement for the different nutrient content (essential composition and quality factors) for which they were analysed, as spelt out in International Food Standards by WHO and FAO in CODEX Alimentarius and thus recommended fit for use as first line of food relief within the country, to assist friendly countries in times of pandemics, disaster and to make food accessible at other times at affordable prices in line with the vision for instituting the strategic grain reserve facilities in different states of Nigeria.