Some people say that pig liver cannot be eaten. Why is there such a statement?

Many people say that pig liver is so good, but what if there is too much vitamin A? Well, in fact, if there is less vitamin A, pig liver is really king food.

Vitamin A is really a double-edged sword, and many people are worried about excessive vitamin A..

Excessive vitamin A generally brings two problems. The first is acute poisoning, which is mainly caused by excessive intake at one time, manifested as dizziness, nausea, blurred vision and other problems.

The second type is chronic, mainly because of excessive intake of vitamin A for a long time, manifested as alopecia, dry skin, irregular menstruation, anorexia, fatigue and so on.

Too much vitamin A intake in children is not conducive to bone growth, so many people are worried. How much is vitamin A normal?

The content of vitamin A in pig liver is 100g and contains vitamin A 17997 iu, which really exceeds the recommended amount.

But for adults, acute vitamin A poisoning requires a one-time intake of 500000IU, which is about 5 kg of pig liver. Chronic poisoning also requires eating about 2.5 ounces of pig liver every day for several months, which may lead to chronic poisoning.

Moreover, some studies have found that only those who lack oil-soluble vitamins will be harmful to health and poisoning, especially those who lack vitamins. In other words, if you often bask in the sun and have enough vitamin D, your tolerance may be greater. Although the vitamin A content of 100g pig liver may exceed the recommended daily amount (RDA) several times, it is almost impossible for ordinary healthy people to eat pig liver poisoning.

Because most people take it once or twice a week, and vitamin A is oil-soluble, our bodies can store it for later use. So it's okay to eat more occasionally and exceed RDA. You can eat it once a week, such as 1-3 Liang, as long as it does not exceed the total demand for one week.

In fact, most cases of vitamin A poisoning are caused by supplements, not food.

Because the absorption rate of vitamin A in supplements is about 10 times that of vitamin A in food, the risk of acute poisoning of supplements is higher.

In short, the risk of vitamin A exceeding the standard is really unnecessary for ordinary people who eat pig liver. Who can eat pork liver every day and eat too much?

Let's talk about rice, white rice, which is a kind of rice after removing bran and germ. Dietary fiber and nutrients are few, and the rest are mainly starch carbohydrates (energy). After eating starch, it will soon be converted into glucose. Actually, in a sense, a bowl of rice is a bowl of sugar.

Therefore, the glycemic index of rice is very high, and the cooked rice is generally around 72, which belongs to the food with high glycemic index. So rice can be eaten, but it is not recommended to eat for a long time. Eating too much can easily lead to insulin resistance and eventually lead to diabetes.

Moreover, the main component of rice is starch, which is converted into sugar after digestion, which will stimulate blood sugar and insulin and is easily stored as fat. So eating too much rice is easy to get fat.