Blyth
Although the habit of eating two meals a day feels good to themselves, in fact, their daily intake of nutrients is likely to be insufficient, which is harmful to the body. healthy unfavorable. because elderly The digestive function decreases day by day, making it difficult to digest and absorb all the food eaten, which can easily cause indigestion and increase the burden on the heart and kidneys. At the same time, due to the long interval between meals, it is easy to suffer from hypoglycemia, hunger, dizziness, fatigue, stomachache and other adverse reactions due to high energy consumption.
In addition, from a human physiological point of view, three meals a day is reasonable.
Biological clock: Three meals refer to morning, noon and evening. During these three times, the digestive enzymes in the human body are particularly active, which shows that when people eat is controlled by the biological clock.
Oxygen supply to the brain: The human brain accounts for a large proportion of the human body’s energy consumption, and the brain’s energy supply can only be Grape Sugar requires approximately 110 to 145 grams of glucose per day. The liver can only provide up to about 50 grams of glucose per meal. Only three meals a day (50 grams × 3 = 150 grams) can the liver provide enough glucose to the brain. The glucose provided by eating only two meals a day is not enough to supplement the physiological activities of the brain.
Food digestion: It takes about 30 to 60 seconds for solid food to travel from the esophagus to the stomach, and stays in the stomach for about 4 hours before reaching the small intestine. Therefore, the interval between three meals a day is 4 to 5 hours, which is also reasonable from the perspective of digestion. Therefore, the elderly should have at least three meals a day, and adding some fruits, nuts, yogurt, etc. as accompaniments between meals will have better effects.
