Composition comprises an quinoa seed extract and optionally suitable excipient, where the extract is a peptidic and osidic extract or liquid extract of quinoa seed, and the liquid extract of quinoa comprises concentrated oil in its insaponifiable fraction, insaponifiable or refined oil with specification comprising fatty cut comprising (in wt.% of the oil): e.g. 14 carbon (= 1), 16 carbon (5-12), 18 carbon (= 2), 20 carbon (= 1), 20 carbon (= 3), 22 carbon (= 1), 24 carbon (= 1) and tocopherol content (0.02-0.2 g/100 g). Composition comprises an quinoa seed extract and optionally suitable excipient, where the extract is a peptidic and osidic extract or liquid extract of quinoa seed, and the liquid extract of quinoa comprises concentrated oil in its insaponifiable fraction, insaponifiable or refined oil with specification comprising fatty cut comprising (in wt.% of the oil): 14 carbon (= 1), 16 carbon (5-12), 16 carbon (= 1), 18 carbon (= 2), 18 carbon (20-35)； 18 carbon (40-60), 18 carbon (2-13)； 20 carbon (= 1), 20 carbon (= 3), 22 carbon (= 1), 22 carbon (= 3), 24 carbon (= 1), tocopherol content (0.02-0.2 g/100 g), sterol content (0.5-3 g/100 g), squalene content (0.5-3 g/100 g), and insaponifiable content (2-6 g/100 g). Independent claims are included for: (1) a preparation of the peptic and osidic extract of quinoa comprising, extraction of the crude oil and cake and recovering the cake, from the quinoa seeds, washing the cake with water or hydro alcoholic mixture and preserving the proteic part, solubilizing the protein, concentrating the protein and hydrolyzing the peptide protein, purifying and recovering the peptidic extract； (2) a preparation of the refined oil of the quinoa comprising chemical refining of the quinoa crude oil； (3) a preparation of the concentrated quinoa oil in its insaponifiable fraction comprising molecular distillation of the quinoa refined oil； (4) a preparation of the quinoa insaponifiable comprising saponification of the quinoa oil
