Apple is rich in vitamin C, vitamin E, polyphenols and flavonoids. It is a natural antioxidant and is particularly effective in preventing cardiovascular and cerebrovascular diseases. Apples contain much more calcium than ordinary fruits, which can help to metabolize excess salt and help to lose weight.

However, few people know that the apple kernel contains hydrocyanic acid. Australian researchers found that apple core contains a small amount of harmful substance-hydrocyanic acid. A large amount of hydrocyanic acid deposited in the body will lead to dizziness, headache, increased respiratory rate and other symptoms, which may lead to coma in severe cases.

But don't worry too much, the hydrocyanic acid in apples mainly exists in the stone, not in the pulp. Need to be reminded: eating apples is used to gnawing at the core, although it will not cause poisoning immediately, but eating like this for a long time is really bad for your health.

Extended data

The efficacy and function of apples

1. Does apple have the effect of lowering cholesterol content?

Eating apples can reduce the cholesterol content in blood, increase bile secretion and bile acid function, thus preventing cholesterol from precipitating in bile to form gallstones. Experiments have found that people who often eat apples have more than 50% lower cholesterol content 10% than those who don't eat apples.

2. Does apple cure constipation and diarrhea?

Apple is rich in tannic acid, pectin, dietary fiber and other special substances. Tannic acid is an intestinal astringent, which can reduce intestinal secretion and reduce the water in stool, thus stopping diarrhea. Pectin is a "two-faced person". Unheated raw pectin has the functions of softening stool and relieving constipation, while cooked pectin has the functions of convergence and antidiarrheal.

3. Does apple have the effect of lowering blood pressure?

Apple contains more potassium, which can be combined with excess sodium salt in human body and excreted. When the human body ingests too much sodium salt, eating some apples is beneficial to balance the electrolytes in the body. The phosphorus, iron and other elements contained in apples are easily absorbed by the intestinal wall, which has the functions of nourishing the brain, calming the nerves and helping sleep. The aroma of apples is a good medicine for depression and depression.

People's Daily Online-Health: Apples are rich in calcium, but eating them wrong is tantamount to "suicide"

People's Network-Eating apples like this is very harmful. Four taboos for eating apples