Temperature rise will destroy some nutrients: temperature rise will cause some nutrients to be destroyed or degraded, such as water-soluble vitamins such as vitamin C and B vitamins, and protein such as whey protein.
Microwave heating will not have a significant effect on milk: some studies believe that microwave heating has no significant effect on the nutritional components of milk under appropriate heating time and temperature. For example, a study shows that only a small amount of vitamins B 1 and B 12 will be destroyed when milk is heated in a 700W microwave oven for 4 minutes.