Coarse grains are flour and rice, such as polished rice and white flour, which we usually eat, and are rich in insoluble cellulose, which is conducive to the normal operation of the digestive tract. You know, although coarse grains have a lot of nutrients and are good for your health, not everyone is suitable for eating coarse grains.

Coarse grains mainly include cereals (corn, millet, Redmi, black rice, purple rice, sorghum, etc. ), miscellaneous beans (soybeans, mung beans, red beans, black beans, etc. ), and tubers (sweet potato, yam, potato, etc. ). All kinds of coarse grains contain different nutrients, and oats are rich in protein; Millet is rich in tryptophan, carotene, iron and B vitamins. Beans are rich in high-quality protein and fat; Sorghum is rich in fatty acids and iron. Compared with coarse grains, polished rice flour lost some nutrients, especially vitamin B 1 and inorganic salts. The processing of coarse grains is very simple, and it retains many nutrients that are not found in flour and rice. In terms of nutrients, the content of protein in coarse grains is relatively low, while the content of starch, cellulose, inorganic salts and B vitamins is rich.

In the past, people liked to attach importance to refined rice flour and thought that fine food was good for health. However, with the development of the times, coarse grains gradually replaced them and became the representative of healthy food. But is it really good to eat coarse grains for a long time?

In fact, eating coarse grains for a long time is not good for your health. Eating too much coarse grains will affect the digestion of the body. You know, coarse grains contain more cellulose. Eating too much will lead to bloating and affect appetite. Moreover, eating too much coarse grains will also cause gastric emptying, leading to food accumulation, and food will be brought back to the esophagus with gastric acid in the stomach, causing serious damage to the esophageal mucosa. Take people aged 25-35 as an example. Eating too much coarse grains will affect the absorption of protein, inorganic salts and some trace elements by human body functions, and even affect the reproductive capacity of human body.

Three kinds of people eat coarse grains carefully

1, poor gastrointestinal function

For people with particularly weak gastrointestinal function, it is best not to eat coarse grains. Eating too much coarse grains will cause a great burden on the gastrointestinal tract.

2. Developing teenagers

Because teenagers are in a vigorous period of growth and development, they have special needs for nutrients and energy and physiological requirements for hormone levels, coarse grains will not only hinder the absorption of cholesterol and its transformation into hormones, but also hinder the absorption and utilization of nutrients.

3. Old people and children

The digestive function of children is not perfect because of the decline of the digestive function of the elderly. Digesting a large amount of dietary fiber is a great burden to the gastrointestinal tract. The absorption and utilization rate of nutrients is relatively low, which is not conducive to the growth and development of children.