Grapefruit: It's not the grapefruit pulp that needs to be heated, but the grapefruit skin. Pomelo peel contains flavonoids such as naringin and rutin, which has antioxidant effect, can reduce blood viscosity, lose weight and resist aging. When it enters the body after heating, it will be more active and exert its greatest effect.
Harm of microwave heating;
1, microwave food produces carcinogenic compounds. Previous studies have shown that meat treated by microwave will produce carcinogens; Amino acids in milk, fruits and grains will also be converted into carcinogens after microwave; Plant alkaloids in vegetables can also be converted into carcinogens by microwave, which is harmful to our health.
2. The loss of food nutrition is serious. The food cooked by microwave oven will greatly reduce the minerals, vitamins and nutrients in vegetables, or become carcinogens.
Extended data:
Foods that cannot be heated in the microwave oven:
1, asparagus. Fresh asparagus is rich in antioxidant nutrients, including vitamin C. A new study published in Norwegian Scandinavian Journal of Agriculture found that microwave heating can lead to vitamin loss in asparagus. Because vitamins C and B are water-soluble vitamins, their stability is poor, and they are easily destroyed when exposed to water, heat and light.
2. Breast milk. Many mothers squeeze breast milk into bottles and store it in the refrigerator, and then heat it in the microwave oven when using it, which easily leads to the reduction of important nutrients. A study published in the American Journal of Pediatrics found that the risk of Escherichia coli in breast milk heated by microwave oven is 18 times higher than that heated by other methods.
References:
People's Network-Remember! Six kinds of food are not suitable for microwave heating.
References:
People's Network-Five kinds of fruits are more nutritious when heated.