In this regard, some netizens put forward, "I heard that fishweed contains aristolochic acid, that taking fishweed is not going to lead to liver cancer?" There are also netizens who said, "Before I saw an article that said fishy grass kidney injury and cancer, do not dare to eat again." The fact is that this is really the case?

Aristolochic acid is a class of nitro-phenanthrene organic acid compounds, naturally occurring in the genus Aristolochia, the genus Aristolochia and other Aristolochiaceae plants, which were once widely used in traditional Chinese medicine.

As early as 2008, aristolochic acid was classified by the World Health Organization (WHO) as a class 1 carcinogen, with apparent nephrotoxicity, which can impair renal tubular function, and may even lead to the risk of kidney cancer.

Currently, China has banned three Chinese medicines that are thought to contain high levels of aristolochic segments, namely Qingmu Xiang, Guanmutong, and Guangbaoji, and some herbs that contain aristolochic acid are strictly controlled and classified as prescription medicines.

In general, it is long-term use and exceeding the maximum dosage that can cause adverse health effects. Therefore, in the use of medication, the regular doctor will be based on the condition and the specific circumstances of the consideration, and then give the prescription, as long as the strict accordance with the medical advice, do not arbitrarily increase the amount, not indiscriminate use of medication, the general will not have a problem.

Speaking of fish, we may not be unfamiliar, it is a flavor of Chinese medicine, with heat detoxification, antibacterial diuretic effect. For online rumors "fishy grass because of aristolactam and may induce nephropathy and carcinogenic", the fact is not so, many experts have been rumors.

First of all, we have to understand a few concepts, Aristolochiaceae is a division of the plant kingdom, Aristolochic acid is a chemical composition, Aristolochic lactam is a metabolite of aristolochic acid. The three are completely different concepts, and it is aristolochic acid that has been shown to cause cancer, which is what most plants in the Aristolochia family contain.

In fact, fish is not Aristolochiaceae, and contains aristolactam and aristolochic acid and can not be equated, the two are different substances, so the risk of taking fish fish cancer is extremely low, so far, there has not been any case of poisoning due to the consumption of fish poisoning.

In addition, throwing away the dose of toxicity is inaccurate, the data show that the sun-dried fish, aristolactam content of 0.016g/kg, the content of the fresh fish is even less, taking into account the amount of fish each time we consume fish, such a small amount of even if there is an impact, but also can be ignored.

According to Chinese medicine, fishweed is pungent in flavor, slightly cold in nature, and has the effect of clearing away heat and removing toxins, inducing diuresis, eliminating carbuncle and pus, and is a dual-purpose Chinese medicine.

But the fish is domesticated time is too short, is a wild vegetable, should not be eaten daily, before cooking can be used 清水浸泡一个小时, and then blanched with boiling water, and then mixed into the seasonings to eat.

It is important to note that because of the efficacy of the fish and cold properties, not suitable for one-time consumption of a large number of , in general, the amount of daily consumption of fish should not be more than 500 grams, can be eaten with ginger.

People with cold spleen and stomach and menstruating women don't eat more, to avoid the cold of fishy grass aggravate the body discomfort.

In addition, some people in the consumption of fishy grass, there will be skin itching, redness and swelling and other allergic phenomena, this kind of people are best not to eat, to avoid damaging the health of the body.

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