Nutraceutical composition of plant foods, for the preparation of food products, comprising water; sodium, potassium, iron, calcium and manganese ions; retinol, retinoids; thiamine; riboflavin; niacin; pantothenic acid; ascorbic acid; soluble plant fibers, said composition being characterized in that said substances are brought by the use, for the preparation of said nutraceutical composition, of plant foods such as: solanum tuberosum tuber(s), cucurbita pepo fruit(s), daucus carota root(s), allium cepa fruit(s), capsicum fruit(s), extra virgin olive oil, cooking salt, prunus dulcis seed(s), said plant foods being respectively present in 3:2:2:1:0.15:0.14:0.132:0.02 ratios, calculated based on the weight of the used edible part of said plant foods.