2. Oranges had better eat some citrus fruits in winter. Because it is rich in vitamin C, it can help mobilize the human immune system and prevent colds. Compared with pear, its protein is 9 times, calcium content is 5 times, phosphorus content is 5.5 times, vitamin B 1 content is 8 times, vitamin B2 content is 3 times, nicotinic acid content is 1.5 times, and vitamin C content is 10 times, which can be described as rich in nutrition. You can't eat more oranges. It is not advisable to eat more than three oranges a day, because the vitamin C content of three oranges can meet the needs of the human body for one day, and eating too much is harmful to the mouth and teeth. Don't eat oranges before meals or on an empty stomach, because the organic acids in oranges will stimulate the mucosa of the stomach wall and are not good for the stomach.
3. Sweet potato is a nutritious food in grain. Because sweet potato can supplement a lot of mucin, sugar, vitamin A and vitamin C for human body, it has the functions of tonifying deficiency and benefiting qi, strengthening spleen and stomach, strengthening kidney yin, harmonizing stomach, warming stomach and benefiting lung. Therefore, eating sweet potatoes often can prevent the atrophy of liver and kidney connective tissue and prevent the occurrence of collagen disease. Sweet potato should not be eaten raw, because the cell membrane of starch in raw sweet potato is not destroyed by high temperature and is difficult to digest in human body; At the same time, when cooking sweet potatoes, the cooking time should be appropriately extended, so that the "gasification enzyme" contained in sweet potatoes will be destroyed, and there will be no discomfort such as bloating, heartburn, burping, nausea and exhaust after eating.
4. After beginning of winter, people will be in an alternate environment of cold outdoors and warm indoors for a long time, which will easily lead to decreased immunity. At this time, you may wish to eat seasonal winter dates, which can supplement your body with vitamin C and improve your immunity. Because the vitamin C content of winter jujube is particularly rich, reaching 352 mg/100 g, which is 70 times that of apple and 0/00 times that of pear, it has the reputation of "living vitamin pill". However, fresh jujube will lose its crisp taste after being placed at room temperature for a few days. In order to facilitate storage, fresh dates can be dried and made into dried dates. However, the lack of water-soluble vitamin C in dried jujube has a great influence on other nutrients, but the calcium content in dried jujube is higher than that in fresh jujube. Dried red dates are more suitable for porridge or soup, which can release nutrition well.
5. Pomelo Pomelo contains natural vitamin P and vitamin C. Eating more grapefruit can clean and moisturize the skin, help repair the injured skin tissue and play a cosmetic role. In addition, grapefruit contains flavonoids, which can enhance the resistance of blood vessels and protect cardiovascular health. Grapefruit contains potassium, but does not contain sodium, which can reduce cholesterol in the body and is very suitable for patients with cardiovascular diseases. Grapefruit is cool and has a good effect on promoting gastrointestinal peristalsis and defecation, so pay attention to controlling weight when eating, and don't overeat, otherwise it will easily cause diarrhea and other physical discomfort symptoms.
6, apples eat apples when the skin is dry in winter. The peel contains an antioxidant called quercetin, which can effectively protect the skin from UVB rays and skin cancer. The fruit acid in apple can prevent and treat xerosis cutis, acne and senile plaque. Apple contains copper, iodine, manganese, zinc, potassium and other elements, which can effectively prevent skin aging, dryness, itching and cracking. According to experts, eating apples should not be too fast. Chewing in the mouth for a long time can secrete more saliva and gastric juice, which is conducive to promoting the absorption and digestion of apple nutrients by the human body. From the point of view of nutrition, we don't advocate' wolfing down'. For people with bad stomach, it is especially necessary to pay attention to the speed of eating apples.
7. Pear is the most common fruit in winter. Chinese medicine believes that pears contain malic acid, citric acid, glucose, fructose, calcium, phosphorus, iron and various vitamins. Eating pears has the functions of moistening the throat, moistening the lungs and relieving cough, nourishing the stomach and intestines. It is most suitable for patients with fever in winter and spring. It is especially suitable for cough due to lung heat, cough due to wind heat in children, dry throat and sore throat, and dry stool. Eat it raw, steam it if you have a bad stomach. The best time to eat pears is between meals, that is, 65438+ 0 to 2 hours from the main meal, so as not to affect the nutrient absorption of the main meal. It should be noted that people with colds and coughs, abdominal cold pain and spleen deficiency in loose stool should drink less pear juice. Pear juice has a high sugar content, so diabetics should use it with caution.