(WO201837926) 1. Peroxide number and 15-180, 10 mass % or more is less than or equal 100 mass % of an oxide containing milk fat and oil ingredient, sweetness and/or salty taste enhancing agents. 2. Wherein the oxide enhancing agent comprises 0.001-50% by mass fat, according to claim 1 potentiators. 3. Sweetening and/or a method of manufacturing an augmented assistances, 10 mass % or more to 100 mass % or less in the raw material fat or oil containing milk, heated while supplying oxygen, peroxide number 15-180 to obtain a fat oxidation, the manufacturing method. 4. The method according to claim 60 mass % or more of the fat mass % milk fat comprising no more than 100, the manufacturing method according to claim 3. 5. 65°C or more is less than or equal to 150°C of the heating, or less than the time 72 hours or more Id.Iq 1, the manufacturing method according to claim 3 or 4. 6. Wherein the oxygen supply, wherein the raw material fat or oil 1kg 0.001-2L/minute per, according to any one of claims 3-5 lactonized. 7. Wherein the milk is milk, according to any one of claims 3-6 lactonized. 8. Wherein the edible fats and oils and fats oxide comprising the step of adding, according to any one of claims 3-7 lactonized. 9. Wherein the enhancer is 0.001-50 mass % fat oxide contained in the layer, the manufacturing method according to claim 8. 10. The food product according to claim 1 or 2 enhancing agent. 11. Wherein said oxide comprises fat food 0.005-10000ppm, according to claim 10 food. 12. Peroxide number and 15-180, 10 mass % or more to 100 mass % or less of an oxide containing fat milk and added to the food product, the food and/or methods to enhance the sweet taste.