In recent years, the Internet has been circulating a study of the ancient “no food after lunch” view of health, that is, no more food after lunch, only drink water to fill the hunger, until the next morning to eat again. Advocates of this viewpoint believe that “no food” can lose weight, health, reduce the burden on the digestive system, as well as reduce the accumulation of toxins in the body. Because modern people’s bodies have long been in a state of sub-health, so many people have gradually imitated the ancient habits of this life. But in fact, the noon meal is not entirely suitable for modern people. Modern people are not like the ancients as “sunrise and work, day into the rest”, so must be three meals at regular intervals, in order to provide sufficient energy for the body. If completely copy the ancient eating habits, it is likely to cause adverse effects on the body. The ancient people sunrise and sunset and rest, follow the habits of this life is no problem. However, modern people have a large amount of night activities, night life, often to sleep in the early hours of the morning, if the night only with water to fill the hunger, will make the body lack of energy, and even induce a series of related diseases. To a female patient who once wanted to achieve the purpose of weight loss by not eating at noon, for example, half a year down although the weight loss part, but there is a stomachache, dizziness, panic, anemia, malnutrition, amenorrhea and other sequelae, it is more than worth the loss. If you have to adhere to the noon meal, the morning and afternoon meals must be sufficient intake of nutrients for a full night of physical exertion to lay a good foundation. Because blind dieting is irreversible damage to the body, we should be rational to treat the ancient argument that noon is not eaten. Not “no food” can be less food over lunch is not completely meaningless. Modern people generally eat too much calories at dinner, lack of exercise, fat accumulation, frequent cardiovascular disease, appropriate to reduce the amount of dinner does help the body’s health, but therefore reject the practice of dinner is too extreme. Modern people should achieve a balanced nutrition of three meals, in line with the principle of “eat well in the morning, eat at noon, eat less in the evening”. Dinner try to choose light, easily absorbed food, not too much calorie intake, to reduce the burden on the gastrointestinal tract. In addition, to eat less late night snacks, or night snacks after 1 to 2 hours before going to sleep, stagger the peak blood flow between the stomach and the brain to avoid causing insufficient blood supply to the body. The meaning of modern health is not only the traditional reference to the absence of disease, according to the “World Health Organization”: health is not only the absence of disease or weakness in a person’s body, but also refers to a person’s physical, mental and social well-being. If you want to be healthy forever, you need to meet the 16-word principle of “balanced mind, balanced diet, moderate exercise, quit smoking and limit alcohol” in your daily life. If you eat only the food you like, it will cause nutritional imbalance.