Hollow cabbage is a "cramped vegetable", heavy metal exceeds the standard also caused cancer?

Ms. Liu recently had some arguments with his granddaughter:

"Grandpa, why are you still frying cabbage to eat? Don't eat it!"

"Now is the season to eat cabbage, add some curd together with fried do not know how delicious, fresh. I've made it for you before, and you've eaten it well."

"But it's not the same now, Grandpa. I've heard that there are a lot of excess heavy metals in cabbage, and you can get cramps if you eat too much."

"I eat it every day and I don't see any problems, and I don't have cramps in my sleep."

Hollowed out, formerly known as yongcai, also known as macaroni and tengtengcai, is a very common vegetable on the summer table with high calcium, high potassium and high dietary fiber. In recent years there are more and more rumors that the empty cabbage is the king of vegetables in the poison, heavy metals exceed the standard, eat more also easy to cramp, that empty cabbage is not really as terrible as the rumors?

One, the empty cabbage is "harmful vegetables", heavy metals exceed the standard also caused cancer?

It is undeniable that leafy vegetables have a higher risk of being contaminated with heavy metals, and it's true that cabbage is more likely to absorb heavy metals than other vegetables, but that doesn't mean that the heavy metal content within cabbage is excessive. The question of whether or not heavy metals are exceeded within food is related to three factors: air, soil, and water quality.

There are clear national regulations for heavy metal content in vegetables, and the National Food Safety Standard Limits for Contaminants in Food states that the content of lead within leafy vegetables must not>0.3mg/kg, cadmium must not>0.2mg/kg, total mercury must not>0.01mg/kg, and total arsenic must not>0.5mg/kg. vegetables with excessive heavy metals are almost The company's products are available on the market.

The Guangzhou Academy of Agricultural Sciences has also tested the marketed cabbage, and the results show that the heavy metal content of our marketed cabbage is within the normal range. Therefore, it is safe to eat.

There are also rumors that eating cabbage can cause cramps and gout?

The high oxalic acid content of leafy vegetables such as cabbage and spinach may combine with calcium to form calcium oxalate precipitates, affecting the absorption of calcium in the body. For people who are deficient in calcium and insufficient calcium intake, consumption may indeed induce cramps, but for ordinary people it is difficult to occur. It is best to blanch the cabbage before consumption to remove most of the oxalic acid from the cabbage.

As for gout, it usually occurs in people with abnormal metabolism, and these people are prone to gout attacks after consuming foods with high purine content. The purine content in empty cabbage is only 17.5mg/100g, which is a low purine food and does not induce gout attacks.

2. 3 food rumors are also unbelievable, don't misunderstand them anymore

1. Pork can cause cancer if you eat too much of it?

While it's true that red meat such as pork is classified as a Group 2A carcinogen by the WHO, this Group 2A carcinogen is not a carcinogen. But this Class 2A carcinogen refers to substances that may have carcinogenic effects on humans. Just because it's not absolutely carcinogenic doesn't mean that pork is inedible. Anyone who talks about toxicity without talking about dose is a "hooligan".

Pork has many nutrients that the body needs, including iron and protein. The daily intake of animal food recommended by our dietary guidelines should be kept at 50-75g, and eating pork within this range is not harmful to the body, so you can rest assured.

2. Bananas have radiation that can cause cancer?

Bananas do have radiation, and the radiation in bananas is mainly related to their potassium content, whose sibling, potassium-40, causes ionizing radiation. But! We can't talk about toxicity aside from the dose. In fact, the amount of potassium-40 in bananas is negligible compared to the amount of carcinogenicity, almost negligible.

For example, the additional ionizing radiation that a banana can deliver is about 0.0778 microsieverts, and it would take 70,000 bananas to achieve the radiation from a chest CT. And the excess potassium is excreted by the body through metabolism, so there is no need to worry too much about it.

3. MSG causes cancer if you eat too much of it?

Rumor has it that when MSG is heated above 120°C, it will produce monosodium pyroglutamate, which is a clear carcinogen and can cause cancer with long-term exposure.

In fact, sodium pyroglutamate is not carcinogenic, it just makes MSG lose its own freshness and defeats the purpose of adding MSG, but has no other effect. The company's main goal is to provide the best possible service to its customers.

Three, four kinds of vegetables really need to be eaten less

In life, we really need to pay attention to the following four kinds of vegetables.

Sprouted, green potatoes

Potatoes themselves have traces of the toxic substance lobotropine, which under normal circumstances does not cause any harm to the body. However, if they are sprouted and green, the level of lobeline will rise dramatically and may be toxic after consumption, as well as a risk of teratogenicity.

Undercooked string beans

Undercooked string beans contain saponin, phytohemagglutinin, and other ingredients that can cause abdominal pain, diarrhea, vomiting, tingling in the limbs, and other symptoms of poisoning appear, and daily eating of string beans must be fully fried.

Fresh cauliflower

Fresh cauliflower has a component called colchicine, which can cause food poisoning when consumed in excess, making people vomit and have diarrhea, and in severe cases can be fatal. The company's main goal is to provide a comprehensive range of products and services to the public.

Bittering loofah

Bittering loofah contains toxins containing alkaloids glycoside alkaloids, which may cause dry mouth, dizziness, abdominal cramps, diarrhea, and dehydration when taken by people with low tolerance. However, abnormal climate and other circumstances can also make loofah bitter, and loofah in this case is non-toxic. So not all bitter loofahs are poisonous. If it is difficult for us to tell whether a bitter loofah is poisonous or not on a daily basis, it is advisable to spit it out in time after tasting it and not to swallow it.

The rapid development of the Internet has also accelerated the spread of rumors. There are many rumors about food on the Internet nowadays, and we must learn to distinguish between them to avoid some false rumors that can affect our normal life.