Napier grass is a popular tropical grass, employed by farmers in livestock nutrition. In this work, the matrices of matured shoots of P. purpureum (schumach) commonly called Napier grass, were subjected to proximate analysis, mineral content determination and phytochemical screening. The proximate profile includes moisture (91.00%), total ash (22.20% DW), crude protein (20.11% DW), crude fat (14.00% DW), total carbohydrate (27.24% DW) and the total metabolizable energy value (315.40 kcal/100g DW) was obtained. The mineral content determination revealed the presence of Calcium (1.479 mg/100g), Cadmium (0.001 mg/100g), Copper (0.017 mg/100g), Iron (0.200 mg/100g), Manganese (0.043 mg/100g), Potassium (10.715 mg/100g), Sodium (0.495 mg/100g), and Zinc (0.045 mg/100g). The presence of alkaloids, flavonoids, glycosides, oils, saponins, steroids, tannins, terpenoids and absence of acidic compounds and resins were determined from the phytochemical screening carried out. This result suggests that Napier grass possesses several bioactivities of which antimicrobial activity is likely the significant activity. Also, the proximate composition and mineral content underlines its importance as a health food suitable for weight loss management of obese individuals, due to the high fibre content and low calorie value