The interest in the possible health benefits of fruit and vegetable-rich diets is on the increase, partly because it has been recognized that increased consumption of vegetables may decrease the risk of developing non communicable diseases (NCDs) . The main attributes that can contribute to the antioxidants and enzyme inhibition properties of vegetables are polyphenolic compounds, minerals and vitamins that are present in abundance. Therefore, the aim of this thesis was to determine the NCD-related antioxidant and enzyme inhibition properties of nine water-soluble extracts of Bangladesh vegetables including ash gourd, bitter gourd, brinjal, Indian spinach, kangkong, okra, ridge gourd, snake gourd and stem amaranth. Aqueous polyphenol extracts were aquired to carry out all the assays because of the hydrophilic nature of the human gastrointestinal tract in addition to the high extraction yield and cheaper cost. The in vitro antioxidant and enzyme inhibition properties showed that almost all the vegtables were able to scavenge free radicals, chelate metal ions and reduce ferric ions, in addition to the inhibition of α-amylase, α-glucosidase, pancreatic lipase, angiotensin converting enzyme and renin. Indian Spinach, kangkong and okra showed the best activity to scavenge free radicals whereas Indian spinach and brinjal extracts performed better for inhibiting digestive enzymes responsible for the progression of NCDs. The quantities of amino acids, minerals and β-carotene available in these vegetables were also determined.