Nowadays, with the improvement of living standards, many urban people are becoming more particular about what they eat, but they know little about how to eat properly, which has led to some dietary misconceptions. If you eat properly, you can not only keep fit but also prevent diseases, achieving two things at once. Eating supplements when you have a cold
Supplements produce relatively high calories and energy in the human body, which can raise the patient's body temperature and worsen the condition. In addition, supplements can also promote the growth and reproduction of bacteria, leading to more severe infections and the spread of inflammation. Eating fruit immediately after a meal
Scientific research indicates that fruits contain a large amount of simple sugars, which are easily absorbed by the small intestine. However, if they are blocked in the stomach by other foods, they will ferment and cause gas and stomach discomfort. Therefore, it is advisable to eat fruit 1 hour before a meal or 2 hours after. Liking to stir-fry with hot oil
This is an unscientific cooking method. When the oil temperature reaches 200 degrees Celsius, it produces a gas called "acrolein," which is a major component of cooking fumes and harmful to the human respiratory tract. Furthermore, "acrolein" causes the oil to produce a large amount of peroxides that are highly carcinogenic. Therefore, it is better to stir-fry with oil that is 80% hot. The more soy products, the better
Nutritionists point out that the protein in soybeans can hinder the human body's absorption of iron. Excessive intake of soy protein can inhibit normal iron absorption by up to 90%, leading to iron-deficiency anemia with symptoms of varying degrees of fatigue and drowsiness. Therefore, soy products should not be consumed excessively; moderation is key. Prefining over coarse
Some urban people insist on fine foods in everything they eat, such as refined rice, and they rub the rice repeatedly when washing it, which rubs off the germ layer of the rice, causing a large loss of vitamin B1 and elements like iron, manganese, and zinc. Whole grains and foods with high coarse fiber content contain essential nutrients and fiber for the human body. For example, sweet potatoes and squash have become beauty foods abroad, and sweet potatoes contain anti-cancer substances. Fiber is the best "cleaner" for the human intestine; it can remove waste from the intestines. Without it, one is prone to constipation, colitis, colon cancer, and other diseases. Using too much seasoning
According to a study in the United States, natural seasonings like pepper, cinnamon, cloves, fennel, and ginger have certain mutagenic and toxic properties. Excessive use of seasonings can lead to abnormal cell changes in the human body, causing cancer, and can bring side effects such as dry mouth, sore throat, listlessness, and insomnia. It can also induce various diseases such as high blood pressure and gastroenteritis. Therefore, it is better to use as little or no seasoning as possible in daily meals. Liking to stir-fry food quickly at high heat
This is an unhygienic cooking method. Poultry and livestock meat, especially animal offal, can carry a large number of viruses and bacteria. Quick stir-frying does not easily kill these viruses and bacteria; some viruses need to be boiled for 10 minutes to be killed. Eating undercooked food can easily lead to "zoonotic" diseases. Therefore, it is safer to cook poultry and livestock meat thoroughly. Fresh vegetables are more nutritious than frozen ones
In fact, fresh and frozen vegetables have equal nutritional value. The difference in nutrition mainly depends on the cooking method. Liking to drink new tea
Although new tea has a fresh leaf color and mellow, fragrant, and refreshing taste, its drawbacks outweigh the benefits. Because freshly picked new tea contains a large amount of unoxidized polyphenols, aldehydes, and alcohols, it can easily cause symptoms like bloating and abdominal pain, and worsen the condition of patients with chronic gastritis. It is advisable to drink less new tea. Eating fruit can help with weight loss
In fact, all fruits contain sugar, especially bananas, grapes, and apples, which are higher in sugar. How can there be a "weight loss" principle if you eat too much sugar? Long-term consumption of vegetable oil
Tests have shown that peanut oil and corn oil can easily be mixed with the strong carcinogen aflatoxin, cottonseed oil contains gossypol which is toxic, and erucic acid in tea oil is not beneficial for the health of people with high blood pressure and heart disease. Therefore, vegetable oil should not be consumed excessively or for long periods. The correct way to use oil is to use one part vegetable oil mixed with 0.7 parts animal oil. Only eating when hungry
Some people do not eat on a regular schedule, but only when they are hungry; some skip breakfast for work, one of their reasons being "not being hungry"; and some busy people often finish their work before eating. These habits can easily damage the stomach and weaken the body's resistance to disease. Because food stays in the stomach for only about 4-5 hours, when you feel hungry, the stomach has long been empty. The gastric mucosa will then be "self-digested" by gastric juice, which can easily lead to gastritis and peptic ulcers. Eating cooled rice and flour products
When rice and flour products cool down, starch molecules automatically arrange themselves in an orderly manner to form a hard crystalline structure that is difficult to fully mix with digestive juices and not easily absorbed by the body. This cooled and hardened starch food must be reheated and steamed again to allow the starch to reabsorb water and swell, so that it can maintain its original nutritional value. Therefore, cooled rice and flour products should be reheated before eating. Boaking dried shrimp directly for soup
Dried shrimp or shrimp skin can easily be contaminated with some carcinogens during processing. Drinking them directly in soup is not good for human health. Experts suggest that you can boil the dried shrimp for a few minutes, then change the water before making the soup, or add 1-2 slices of vitamin C to the soup to block the synthesis of carcinogens in the body.