As a food rich in cellulose, long-term excessive intake of corn can also cause organ damage. A healthy person consumes more than 50g of cellulose every day. Long-term consumption will lead to protein deficiency, decreased fat utilization rate, and damage to blood, heart, bones and other organs, leading to decreased immunity.
2. Old people and children
Children's digestive function is not perfect, and the elderly's digestive function is reduced, which is easy to cause gastrointestinal burden for digesting a large number of fibrous foods. Nutrient absorption and utilization rate is low, which is not suitable for children's growth and development, so children and the elderly are not suitable for eating.
3. Growth and development period
People in growth and development need more energy, nutrition, hormones and so on. Coarse grains are not conducive to nutrient absorption and utilization, and can hinder cholesterol absorption and transformation into hormones.