The human body needs a variety of nutrients. Judging from the evolutionary history of human beings, there must be a variety of food sources to meet the needs of nutritional balance. Although the types of food in daily diet are limited, in real life, the varieties of cereals, vegetables, fruits and wild natural plants picked by human beings are infinite. A simple and meticulous diet is actually harmful, especially for growth and development. Partial eclipse and over-refined food can easily lead to the deficiency of trace elements such as iron, zinc, iodine, mineral element calcium and some vitamins and the surplus of some nutrients. Therefore, besides paying attention to the color, aroma, taste and shape of food, we should also advocate the diversification of food sources.
The ancients said: "omnivores, food is also!" "Professor Li Ruifen, a famous nutritionist, once said that in order to stay healthy, we have to eat 25 to 30 different foods every day, which can be described as varied!
"Eating Moderately" —— Balance of Cold and Heat in Diet
"dieters, heat is not burning, cold is not surging", pointing out the balance between cold and heat in diet. "Eat warm". Eating too much cold food will damage the spleen, stomach and lung, ranging from coughing to venting. People with weak body and cold stomach should eat less cold food, especially in summer. The people also stressed that "don't worry when you are hungry, and avoid cold on an empty stomach." On the contrary, the diet should not be overheated, otherwise it will easily burn the stomach cavity and throat. It is reported that in the high incidence area of esophageal cancer in North China, residents have the habit of drinking hot water and hot porridge. Therefore, Sun Simiao, an ancient medical scientist, pointed out in A Thousand Women's Wings: "Hot food hurts bones, cold food hurts lungs, hot food does not burn lips, and cold food has no ice teeth. "Therefore, the diet should pay attention to the balance between cold and heat.
"Don't move before meals, don't be quiet after meals"-exercise balance before and after meals.
It is also important to keep the balance between motion and static before and after eating, because there must be a balance between the various foods and nutrients that people consume in their daily diet and the body's calorie consumption. "The Analects of Confucius and the hard-working townships" said: "Eat without words, sleep without words." It shows that the ancients advocated to be quiet and focused before and during meals, not to be distracted and talk about it, and to digest it in Lina Valley. The ancients said, "Eating is lying down, and you don't have to accumulate it, but you are sick." The ancient book of medical dietotherapy says that "lying down after meals will make people suffer from lung qi, head wind and middle-aged diseases, so they can't cover the camp and guard, so their blood stagnates", so they should exercise properly after meals. As the saying goes, "Walking a hundred steps after a meal can live 99", which shows that walking slowly after a meal is good for health.
"Good Stomach"-Emotional Balance before and after Eating
Maintaining a calm and happy mood before and during eating is conducive to the normal digestive function, otherwise it will hurt the spleen and stomach. Su Wen's Theory of Great Pain said: "Anger is anger, joy is anger, sadness is anger, fear is anger, shock is anger, and thinking is anger." It is hard to imagine that people can still ensure normal digestive function under the condition of qi and blood disorder. The ancients said, "Don't be angry after a meal, and don't eat after being angry." All abnormal emotions during eating should be eliminated as much as possible.
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