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Eating Too "Coarse" Can Harm Your Bones
The rich dietary fiber in coarse grains promotes digestion and increases satiety, making them popular among people trying to lose weight. However, a long-term diet that is too "coarse" can interfere with the body's absorption of protein, inorganic salts, and certain trace elements. This can lead to damage to the functions of organs such as bones, the heart, and the gastrointestinal tract, and reduce the body's immune capacity.
For adolescent girls, excessive consumption of coarse grains can cause cholesterol from other foods to be expelled along with the fiber, leading to a reduction in female hormone synthesis and affecting the development of reproductive organs like the uterus.
Therefore, coarse grains should be eaten "finely"—that is, by cooking them into porridge or mixing them with fine grains. Additionally, when eating coarse grains, it's important to drink plenty of water because the fiber in coarse grains needs sufficient moisture to support the normal functioning of the intestines.