1, Apple: The nutritional value of apples is praised. Its fructose and glucose are among the best in fruits; It is also rich in fruit acid. It is particularly worth mentioning that pectin and potassium contained in apples rank first among fruits. Modern medical research shows that apples contain protein, fat, vitamin C, vitamin A, vitamin E, phosphorus, calcium, zinc, malic acid, citric acid, tartaric acid and sodium. Eating more apples can stop diarrhea and relieve constipation, which is suitable for pregnant women, prevent hypertension and lose weight.

2. Mangosteen: Mangosteen is called Mangosteen in Chinese, Mangis in Malay and Mangosteen in English. Native to Malaysia, it belongs to Garcinia medium-sized evergreen tree, with a height of 10-20m and a beautiful tree shape. Single leaf opposite, oval, leathery, terminal flower, red petals. 2. It blooms in April, and the fruit is purple when it matures, containing 1-2 seeds. The flesh is brownish white and transparent, and the taste is sweet and smooth. Mangosteen grows slowly, and bears fruit only 8- 10 years after planting. Fruit ripens from June to July. The pulp contains 16.8% soluble solids, 0.63% citric acid and other vitamins B 1, B2, C4 and minerals. It is a typical tropical fruit with hard and heavy wood, which can be used to make furniture. Mature mangosteen skin is purple-black and hard, and the fruit pedicle is green, slightly smaller than the fist. The surface is thick and hard, and the flesh exposed by peeling off the epidermis is white and tender, sour, and some are like peaches. It is called the "fruit queen" among fruits. However, it should be noted that the purple juice after peeling off the epidermis should not be stained on the clothes, which is not easy to clean.

3. Strawberry: Strawberry is rich in vitamins and minerals, and the content of vitamin C per 100g is as high as 80mg, much higher than that of apples and pears; It also contains glucose, fructose, citric acid, malic acid, carotene, riboflavin and so on. These nutrients have a good promoting effect on children's growth and development, and are also good for the health of the elderly. In particular, rich vitamin C can prevent gum bleeding, promote wound healing and make skin delicate and elastic. Chinese medicine believes that strawberry is sweet and cool, and has the effect of nourishing body fluid and moistening lung. Eating a few strawberries after a meal helps digestion and appetite. Recently, medical scientists have found that eating strawberries regularly is also beneficial to the prevention and treatment of arteriosclerosis and coronary heart disease. According to the research of foreign medical scientists, strawberry contains anticancer components, which can inhibit the growth of tumor cells. In Europe, strawberries have long enjoyed the reputation of "fruit queen" and are regarded as healthy food for children and the elderly.