There is a saying that "an apple a day keeps the doctor away", which has become the reason why many people like to eat apples. Needless to say, apples are treasures, including its aroma, which has become a good medicine for treating depression and eliminating psychological depression. The taste of green apples can also relieve headaches and relax people's head and neck muscles. So much has been said about the aroma of apples, as well as the nutrition of apple skins that people often forget. Let's take a look!

dietary fibre

A medium-sized apple contains 4.4 grams of dietary fiber in the peel, but after peeling, the dietary fiber in the apple meat is only 2. 1 gram.

antioxidation

A research team in the United States found that the antioxidant capacity of apple peel to brain cells was significantly enhanced. Compared with other fruits and vegetables, quercetin contained in apples is the best. Therefore, for patients with Alzheimer's disease, quercetin, an antioxidant rich in apple peel, helps to prevent brain tissue damage related to degenerative diseases such as Alzheimer's Harmo's disease (Alzheimer's Harmo's disease), thus helping to protect memory.

vitamin

A medium-sized apple peel contains 8.4 mg of vitamin C and 98 international units (IU) of vitamin A. After peeling, the two vitamins in apple pulp are only 6.4 mg and 6 1 IU.

Clean the mouth

Organic acids and fruit acids in apples can kill bacteria in the mouth and protect teeth from tooth decay and gingivitis.

Protect the lungs

A study published in the American magazine Health found that apple peel is rich in natural antioxidant quercetin, which can protect the lungs from pollutants. Eating at least five apples a week can improve lung function.

Whitening and beautifying

The crude fiber in apples can promote gastrointestinal peristalsis and is rich in trace elements such as iron and zinc, which can make the skin moist and shiny and play a role in beauty and slimming.

Although we have talked so much about the benefits of apple peel, we must not be stupid enough to eat only apple peel. In addition, there are some pesticide residues in the apple peel, which must be cleaned when eating.