Entering the 21st century, to avoid the pitfalls of unscientific diets and reduce "diseases of affluence" such as obesity, diabetes, heart disease, high blood pressure, and cancer, nutritionists in our country have proposed adopting scientific dietary methods. The key points are as follows:
1. Balanced Nutrition: The proportions of various nutrients consumed should be appropriate, maintaining a balance between intake and the body's requirements. This includes a balance between energy needs and energy sources, amino acids, fatty acids, acid-base levels, vitamins, and minerals (both major and trace elements).
2. Consume Dark-Colored Foods: Generally, natural foods that are dark and rich in color are high in nutritional value, containing more vitamins, trace elements, and minerals, and have health-promoting effects for the human body. Excessive consumption of light-colored natural foods is detrimental to health, such as light-colored vegetables, sugar (refined sugar), salt (refined salt), and refined grains.
3. Variety of Foods: No single natural food can provide all the nutrients the human body needs, therefore, one should not be a picky eater. A regular daily diet must include grains and tubers, animal-based foods, soy and its products, vegetables, and fruits. Within the same food category, different varieties should be frequently rotated, and combined with a variety of side dishes and snacks for mixed consumption.
4. Avoid Rich and Heavy Flavors: Foods that are roasted, grilled, pan-fried, or deep-fried are difficult for the body to digest and absorb, increasing the burden on the gastrointestinal tract and destroying the natural flavor. Overly salty and greasy foods are contributing factors to high blood pressure and cardiovascular diseases. Excessively sweet foods are closely related to obesity, diabetes, and cardiovascular diseases.
5. Scientific Food Pairing: The combination of staple foods, side dishes, and snacks should be rational, with a mix of coarse and fine grains. The general ratio of carbohydrates, fats, and proteins is 58%, 30%, and 12%, respectively. At the same time, great importance should be placed on the intake of trace elements and dietary fiber.
6. Natural and Harmless: It is recommended to eat natural foods. Food ingredients and auxiliary materials used in food production, including colors, flavors, seasonings, and additives, should all be natural substances rather than artificially synthesized chemicals.
In summary, the scientific dietary approach can be encapsulated in 16 characters: focus on nutrition, emphasize health, strive for science, and ensure hygiene.