Diet is an important means for humans to obtain nutrition. Therefore, one should master the scientific methods of obtaining nutrition in their diet, but at present, there are many misconceptions about getting nutrition. Misconception 1: Fruits are always more nutritious than vegetables.
In fact, the nutritional value of most fruits is not as good as that of daily vegetables. Misconception 2: Lean meat does not contain a lot of fat.
Generally speaking, the fat content in lean pork is the highest among all meats, reaching 25% to 30%, while rabbit meat is the lowest, at only 0.5% to 2%. The fat content of chicken (without skin) is also relatively low. The fat content of beef is generally below 10%, but if it is fatty beef, even the tenderloin area is covered with fine fat points, and the fat content can even exceed that of pork. Misconception 3: Eating more plant oil is good for longevity.
Population surveys and experiments have shown that people with a high intake of animal fat have a higher incidence of cardiovascular diseases, while people with a high intake of plant oil have a lower incidence. However, strangely, there is no significant difference in lifespan between the two groups. Investigation has found that the reason is that people with a high intake of plant oil have a higher incidence of cancer. If you eat more plant oil, it is best to supplement with antioxidants such as vitamin E. Misconception 4: Only chicken, duck, fish, and meat contain high-quality protein.
Protein in animal foods is indeed of high quality, but inexpensive legumes and oil-containing seeds such as peanuts and sunflower seeds are also rich in protein. Misconception 5: The purer the drinking water, the better.
In fact, many elements needed by the human body are obtained from drinking water. Mineral water containing certain trace elements or compounds can even have therapeutic effects on certain diseases. Distilled water itself contains almost no solutes and can dissolve some substances from the human body, which is beneficial for people with metal poisoning, but drinking it regularly by normal people may lead to a lack of certain minerals. Misconception 6: Foods without a salty taste do not contain salt.
Salt is sodium chloride, but in addition to this, sodium also exists in various compound forms. Because blood contains a large amount of sodium ions, animal foods all contain a relatively high amount of sodium. In addition, processed foods also contain a large amount of sodium. Therefore, even if you eat foods without a salty taste, you can still get a lot of sodium. Misconception 7: Foods containing various amino acids are all high-grade nutritional supplements.
Amino acids themselves are not mysterious; they are just the building blocks of protein. Foods that contain protein also naturally contain amino acids. Inexpensive corn and potatoes also contain various amino acids. Since healthy people have the ability to digest protein, they can completely obtain amino acids from ordinary food, and there is no need to drink expensive amino acid nutritional supplements. Misconception 8: All-natural foods are definitely harmless to the human body.
Food chemical analysis has also found that many all-natural foods contain harmful substances. For example, raw beans contain hemolytic substances, sprouted potatoes contain toxins, and certain fish contain substances such as amines that may cause poisoning. If these foods are not handled properly, danger can occur. Misconception 9: Foods with additives are definitely harmful.
Compared to tobacco and alcohol, the harm caused by food additives to healthy adults is minimal. As long as national limit regulations are followed, currently permitted additives are quite safe, and on the whole, the benefits outweigh the drawbacks. Misconception 10: Western fast food is rich in nutrition.
Nutritionists believe that Western fast food is high in calories and fat, lacks green vegetables, has insufficient dietary fiber, and is nutritionally unbalanced. Other types of fast food have similar problems. Frequent consumption will inevitably lead to malnutrition.