No, reasonable exercise and a reasonable diet won't make you fat. Teenagers should combine coarse grains with flour and rice. Because of the special demand of growth and development for nutrients and energy (energy food) and the physiological requirement for hormone level, coarse grains not only hinder the absorption of cholesterol and its transformation into hormones, but also hinder the absorption and utilization of nutrients. Eating too much "coarse food", for example, 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. Therefore, coarse grains should be mixed with flour and rice.

Extended data:

Compared with flour and rice, which we usually eat polished rice and white flour, coarse grains mainly include all kinds of dried beans, such as mung beans, soybeans, green beans, red beans and corn, wheat bran, purple rice, sorghum, oats, buckwheat and so on.

The nutrients contained in all kinds of coarse grains have their own strengths, and beans are rich in high-quality protein and fat; Sorghum is rich in fatty acids and iron; Oats are rich in protein; Millet is rich in tryptophan, carotene, iron and B vitamins. Compared with coarse grains, polished white rice and polished white flour lost some nutrients during grain processing, especially vitamin B 1 and inorganic salts. The processing of coarse grains is simple, and many nutrients not found in flour and rice are preserved. 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.

Coarse grains that are usually eaten, such as various dried beans such as soybeans, red beans, mung beans, black beans, etc.; Millet, corn, sorghum, oats, buckwheat, wheat bran, etc., are usually solid, and they can be made into drinks from cereals, which gives people a refreshing feeling. Not only can they retain the nutrients beneficial to human health in cereals, but consumers can also drink drinks with better taste, more convenient drinking and easier absorption.

References:

Baidu encyclopedia-coarse grains