Proximate and Phytochemical Composition of African Walnut (Tetracarpidium conophorum) as a Potential Nutraceutical Source in Akwa Ibom State

African walnut (Tetracarpidium conophorum), locally called ukpa in Akwa Ibom State, South South Nigeria, is a commonly consumed food with reported health benefits including management of hypertension and diabetes. Despite its dietary importance, systematic chemical characterisation of samples from Akwa Ibom State remains limited in the published literature. This study determined the proximate composition and phytochemical profile of raw and boiled African walnut kernels obtained from markets in Uyo and Ikot Ekpene. Proximate analysis was conducted following AOAC methods to determine moisture, crude protein, crude fat, crude fibre, ash, and carbohydrate content. Phytochemical screening identified alkaloids, flavonoids, tannins, phytates, oxalates, and saponins. Crude protein content was highest in raw samples at 18.4%, while boiling reduced phytate and oxalate concentrations by 34 and 48% respectively. Flavonoid and alkaloid contents remained relatively stable after boiling. Total polyphenol content was determined by the Folin-Ciocalteu method. The high protein content and significant flavonoid presence support the nutraceutical potential of African walnut as a dietary supplement ingredient, particularly for communities with limited access to conventional protein and antioxidant sources. Reduction of antinutritional factors through boiling supports the safety of regular consumption. Keywords: African walnut, Tetracarpidium conophorum, proximate analysis, phytochemistry, Akwa Ibom State.