1, fruit: 30 minutes-1 hour. Melon fruits (such as watermelon) need the shortest digestion time, while bananas need the longest. I feel hungry between meals and want to eat a fruit to resist for a while. Bananas are a good choice. Watermelon can provide energy quickly and raise blood sugar, especially for diabetics.
2. Vegetables: 45 minutes -2 hours. Cucumber vegetables (such as wax gourd) have the shortest digestion time, eggplant vegetables (such as tomato and eggplant) take the second place, leafy vegetables (such as spinach and Chinese cabbage) and cruciferous vegetables (such as broccoli) take the second place, and root vegetables (such as sweet potato and taro) take the longest digestion time. Therefore, root vegetables can be used as staple food. People with indigestion should eat less cruciferous vegetables such as broccoli, and if they want to eat, they must cook them soft and rotten.
3. Grain: 1.5 hours -3 hours. Liquid or semi-liquid cereals (such as porridge) take a short time to digest, and fermented foods without oil (such as steamed bread and oil-free bread) are also easier to digest. Their digestibility in the body is the highest, reaching 98%. Therefore, porridge and steamed bread are good choices for people with bad stomach. However, if you add oil, it will become fried steamed bread slices, fried rice and so on. It will be difficult to digest.
4. protein: 1.5-4 hours. Liquid protein foods such as milk and soybean milk are easy to digest, while protein's rich meat such as beef and chicken takes 4 hours or more to digest completely.
5, fat: 2 hours -4 hours. The digestibility of fat is related to the content of lower fatty acids and unsaturated fatty acids. The higher the content of these fatty acids, the easier it is to digest. So vegetable oil is more digestible than animal oil. Eating fat with cereals or protein foods will prolong the digestion time of the latter. Therefore, eating greasy staple foods and dishes will cause a great burden on the stomach.
Common sense of expanding data digestion system:
1. The digestive tract is about10m long from the mouth to the anus. If the small intestine is unfolded, the total area can reach about 20 square meters, which is almost equivalent to a tennis court.
2. The stomach is a semi-autonomous organ. If you feel hungry, it will make animals look for food.
It takes 3 days to digest the food after a short holiday. Among them, carbohydrates are digested first, then protein, and finally fat.
4, sleepy after eating, probably because the food contains tryptamine. Protein in meat will largely offset this effect, while foods with high sugar content will increase the effect of tryptamine.
5. People also need energy to digest food, and food accounts for 5%- 15% of the total energy consumption, among which protein and alcohol digestion need the most energy.
6. The main component of gastric digestive juice is hydrochloric acid, which can dissolve metals, but it is ineffective for plastics, wax, hair and chewing gum.
7. Men drink more than women because women usually have only 60% of the enzymes that can neutralize alcohol.
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