Flax is a nutraceutical with many nutritional benefits. Aside from the vitamins, minerals, fiber and protein it contains some primary and secondary metabolites. Flaxseed is a good source of omega-3 fatty acids. Through its high concentration of alpha-linolenic acid, flax provides more omega-3 fatty acids than any other grain. (57% of its fatty acids are omega-3s.) As the health revolution continues to evolve, look for it to be added to more and more processed foods to attain the health smart claim. Flaxseed (FS), a whole grain used as a nutritional supplement, has gained popularity because it is a rich source of natural antioxidants. Dietary intake of polyphenols has been associated to reduce risk of chronic diseases, such as heart disease, stress induced diabetes and cancer. This is probably due to their antioxidant properties. Many phenolic compounds have been detected in Flaxseed. Hence with the objectives to analyze the phytonutrient composition, assess the non-antioxidant enzymes vitamin A, E and C and find the antioxidant activity of processed flaxseed the study was carried out. The flaxseed was subjected to various methods of food processing like roasting, pressure cooking and soaking. The processed flaxseed was further analysed the primary and secondary metabolites and their antioxidants activity. This study does not show much variation in primary and secondary metabolites between the raw and roasted seeds. The acceptance and palatability was high in the case of roasted soybean and flaxseed because of their nutrients nutty flavour, colour and texture than the unprocessed seeds. Non- antioxidant enzymes, vitamin A, vitamin E and vitamin C content was high in both soaked and roasted flaxseed. Antioxidant activity was high in roasted and soaked flaxseed. Thus the presence of these phytonutrient and antioxidant activity of processed namely roasted and soaked flaxseeds indicates that, it has a potential of being used in formulations prepared for food consumption. Flaxseed could also be a remedy for the major killer diseases like cancer, diabetes and cardiovascular diseases.