This invention relates to a novel mixture of lipids and the use thereof for preparing a food product intended for oral or enteral nutrition wherein the lipid mixture has a balanced and adequate fatty acid profile specially suited for using the same in complete nutritional products for oral or enteral administration. Such fatty acid profile, from vegetable and fish oils, provides a relatively low content of saturated fatty acids, a high content of medium-chain and monounsaturated fatty acids (oleic acid) and a balanced supply of essential (linoleic and .alpha.-linolenic) fatty acids, as well as long-chain polyunsaturated fatty acids of the Omega 3 series (n-3).