Some people think that oranges contain a lot of vitamin C and crabs may contain arsenic compounds. If eaten together, these two substances will react and produce arsenic, which is harmful to human body. Just like shrimp can't be eaten with oranges.
This statement is wrong. The crab itself does not contain arsenic, but if the water environment where the crab lives is polluted, there will be pentavalent arsenic in the crab. This kind of arsenic is not toxic, but it will be reduced to trivalent arsenic when it meets vitamin C. This kind of arsenic is toxic and will threaten health. But be sure to eat a lot.
Crabs have certain nutritional value, and oranges also have certain nutritional value. At the same time, it will not cause any problems, but it may lead to the loss of nutrients, so that the absorbed nutrients can not play their greatest role. So it's best not to eat together.
Eating an orange a day can reduce the incidence of cancer in the mouth, esophagus and stomach by half, which is the latest research result of Australian scientists just released in June and February of 5438. The Commonwealth Scientific and Industrial Research Organization of Australia found that eating citrus fruits every day can also reduce the incidence of stroke 19%. Citrus fruits are the largest fruit family, including oranges, tangerines, grapefruit, grapefruit, kumquat and lemon. Among them, oranges are traditionally regarded as the main source of vitamin C in the western diet, and can also provide a considerable amount of carotene and minerals such as potassium, calcium and iron.
Citrus fruits can resist oxidation, enhance the immune system, inhibit the growth of tumor cells, and turn tumor cells into normal cells. According to the research of Australian scientists, among all fruits, citrus contains the highest antioxidant substances, including 170 phytochemicals, including more than 60 flavonoids and 17 carotenoids. Flavonoids have the functions of anti-inflammation, anti-tumor, strengthening blood vessels and inhibiting blood coagulation, while carotenoids have a strong antioxidant effect. These comprehensive physiological active components make citrus fruits have inhibitory effects on the occurrence of various cancers.
Crab (páng xiè): Animal kingdom, Arthropoda, Crustacea, Soft Crustacea, True soft armor Subclass, Decapoda, Gastropoda, Anura. It is a crustacean. Its body is protected by a hard shell and breathes through its gills. Taxonomically, it is the same kind of animal as shrimp, lobster and hermit crab. Most kinds of crabs live in the ocean or offshore areas, and some live in fresh water or land. They rely on the mother crab to give birth to small crabs, and every time the mother crab will lay a large number of eggs, the number can reach more than one million. Crabs rely on the geomagnetic field to judge their own direction. The amount of genetic material of this kind of organism is complex and varies greatly, often as many as 100 pairs. Common crabs are hairy crabs (river crabs, hairy crabs, clear water crabs) and swimming crabs. China is rich in crab resources, among which the hairy crabs produced in Gucheng Lake, Taihu Lake, gaoyou lake, Yangcheng Lake, Xiefu, Xinghua and Hongze Lake in the lower reaches of the Yangtze River are the top grade.