7 kind of person is unfavorable eat whole grains 
 
 
Source: xinhua 

        1, calcium, iron and other elements of the crowd 
 
        Because of coarse grains contains phytic acid and food fiber, can combine to form precipitation, hinder the body's absorption of minerals. 
 
        2, digestive system diseases 
 
        If patients with liver cirrhosis esophageal varices or gastric ulcer, eating lots of whole grains easy cause vein rupture hemorrhage and ulcer bleeding. 
 
        3, people of low immunity 
 
        If intake of fiber more than 50 grams a day for a long time, can make the person protein supplement is blocked, the utilization rate of fat is reduced, cause bone, heart, blood and other organs function damage, reduce the body's immune ability. 
 
        4, physical activity are heavier 
 
        Coarse grains of low nutritional value, less power, for people engaged in heavy manual labor provide inadequate nutrition. 
 
        5, developing adolescents 
 
        Due to the growth of the special demand of nutrients and energy as well as to the physiological requirement of hormone levels, coarse grains not only hinder the cholesterol absorption and its transformation into a hormone, also interfere with the absorption of nutrients and use. 
 
        6, the elderly and children 
 
        Because the digestive function impairment of old people and children digestive function is not perfect, absorb a lot of food fiber for gastrointestinal is great burden. And the absorption of nutrients and utilization is low, is not conducive to children's growth. 
 
        7, gastrointestinal function is poor 
 
        The poorer people of gastric bowel function, eat too much food fiber is a big burden to the stomach.
 
 
 
The original link: http://www.jkb.com.cn/healthyLiving/nutrition/2014/0429/340232.html