1 Apple
Apples contain more potassium, which can combine with excess sodium salt in human body and excrete it. When the human body consumes too much sodium salt, eating some apples is beneficial to balance the electrolyte in the body. The elements such as phosphorus and iron contained in apples are easily absorbed by the intestinal wall, and have the functions of nourishing the brain, calming the mind and sleeping.
2. Cherry
Contains sugar, citric acid, tartaric acid, carotene, vitamin C, iron, calcium, phosphorus and other ingredients. For spleen and stomach weakness, eating less diarrhea, or spleen and stomach yin injury, dry mouth and tongue; Deficiency of liver and kidney, weakness of waist and knees, weakness of limbs, or nocturnal emission; Refractory spots such as blood deficiency, dizziness, palpitation, dull complexion and facial freckles can play a desalination role.
3. Kiwifruit
Different from other fruits, kiwifruit contains a wide range of nutrients. Most fruits are rich in one or two nutrients, but each kiwifruit can provide 8%DV folic acid, 8%DV copper, 8% pantothenic acid, 6%DV calcium and fresh, 4%DV iron and vitamin B6, 2%DV phosphorus and Va and other vitamins and minerals.
Most species of kiwifruit require warm and humid climate, that is, subtropical or temperate humid and semi-humid climate, which is mainly distributed in the vast area of18 ~ 34 degrees north latitude. The annual average temperature is about11.3 ~16.9℃, the extreme maximum temperature is 42.6℃, and the extreme minimum temperature is about-20.3.
4. Citrus
Citrus is famous for its rich vitamin C, and its vitamin P can enhance the effect of vitamin C, strengthen peripheral vascular tissues, and the hesperidin in citrus can also reduce the fragility of capillaries, which is very beneficial for patients with hypertension and obesity. Contains sugar, vitamin C, citric acid, potassium, calcium, phosphorus and so on. Contains sour ingredients that can help digestion.
Citrus is the mature fruit of many kinds of citrus in Rutaceae. The peel is thick and easy to peel off, and the fruit is bigger and orange-yellow than oranges. Citrus is one of the most important fruits in the world. China is the origin center of citrus fruit trees in the world. Citrus is produced from both sides of the Yangtze River to Fujian, Zhejiang, Guangdong, Guangxi, Yunnan, Guizhou, Taiwan Province and other provinces, and each has its own excellent varieties.
5, grapefruit
Grapefruit contains sugar, vitamin B 1, vitamin B2, vitamin C, vitamin P, carotene, potassium, phosphorus, citric acid and so on. The main components of pomelo peel are naringin, neohesperidin and so on, and pomelo core contains fatty oil, phellodendron, phellodendron lactone and so on.
The history of cultivating pomelo trees in China is very long, as far back as the Zhou and Qin Dynasties BC. China is cultivated in Guangdong, Guangxi, Fujian, Jiangxi, Hunan, Hubei, Zhejiang and Sichuan. Among them, Nankang Sweet Pomelo in Ganzhou, Jiangxi, Jinggang Honey Pomelo in Ji 'an, Shatian Pomelo in Rongxian, Guangxi and Guanxi Honey Pomelo in Pinghe County, Fujian are the most famous, and Nankang, Jiangxi has the beauty of "the hometown of sweet pomelo in China".
Factors affecting glycemic index:
1, carbohydrate type and structure: monosaccharide has higher glycemic index (GI) than polysaccharide.
2, dietary fiber content: more content can slow down the digestion and absorption rate and reduce the GI of food.
3. Physical state of starch: The finer the grain size, the higher the GI.
4. The gelatinization degree of starch: The higher the gelatinization degree, the higher the GI.
5. Fat and protein content: The increase can reduce the gastric emptying rate and intestinal digestion and absorption. GI is low.