A PROCESS FOR PREPARING AN OIL MIXTURE OF AN ω6 PUFA (SUCH AS ARA) WITH ω3 PUFA (SUCH AS DHA AND/OR EPA) IS DESCRIBED WHICH CAN BE INCLUDED INTO EDIBLE FORMULATIONS SUCH AS FOODSTUFFS, AND IN PARTICULAR INFANT FORMULAS. A CRUDE ω6 PUFA (e.g. ARA)-CONTAINING OIL IS ADMIXED WITH A CRUDE ω3 PUFA (e.g. DHA OR EPA)-CONTAINING OIL TO PRODUCE A CRUDE OIL MIXTURE (OR BLEND). THIS MIXTURE IS THEN PURIFIED BEFORE ADDITION TO A FOODSTUFF. ALTERNATIVELY, A CRUDE ω6 PUFA-CONTAINING OIL IS TREATED, AND A CRUDE ω3 PUFA-CONTAINING OIL IS ALSO TREATED, AND THE TWO PURIFIED OILS ARE THEN BLENDED PRIOR TO DEODORISING AND THEN ADDED TO A FOODSTUFF. THE PURIFYING INCLUDES ACID AND/OR ALKALI TREATMENT, BLEACHING, DEODORIZATION, FILTERING, POLISHING OR COOLING. THE PURIFYING REMOVES TRACE METALS, PIGMENTS, CARBOHYDRATES, PROTEINS, SULPHUR, STEROLS, MONO- OR DI-GLYCERIDES FROM THE OILS WHICH RENDERS THEM SUITABLE FOR HUMAN CONSUMPTION.
