Modern diets often advocate for eating whole grains, but whole grains are not suitable for everyone, and eating too many of them can have negative consequences!
For example, in the 25 to 35 age group, excessive consumption of "coarse" grains can affect the body's absorption of protein, inorganic salts, and certain trace elements, and may even impact human reproductive capacity.
1. Eating too many whole grains can affect digestion. Excessive fiber can lead to acute symptoms such as intestinal blockage and dehydration.
2. Long-term overconsumption of whole grains can also affect absorption, leading to a deficiency of many essential nutrients in the body. The so-called "pale and malnourished complexion" is a typical manifestation of malnutrition caused by consuming too much fiber.
3. For "special" groups with high nutrient requirements, the harm caused by overconsumption of whole grains due to impaired absorption is most pronounced. These individuals include pregnant and breastfeeding women, as well as adolescents in their period of growth and development.
4. Fiber can also interfere with drug absorption. It can reduce the effectiveness of certain lipid-lowering drugs and antipsychotic drugs.
Three groups of people should be cautious about eating whole grains
1. Children
Children have relatively weak digestive and absorption capabilities, and eating too many whole grains can cause indigestion. Whole grains can also affect the digestion and absorption of minerals such as calcium, iron, and zinc, which is detrimental to a child's growth and development. Children under 3 should eat less whole grain. If you must add a small amount of whole grain to a child's diet, it should be "processed finely," such as using finely ground cornmeal to make porridge. It is best not to feed children mixed grains more than twice a week, and not more than 25 grams each time. The best way to feed children mixed grains is to combine them with refined grains, such as a two-grain porridge made from a mix of rice and millet.
2. Teenagers
Teenagers are in a period of vigorous growth and development. Long-term excessive consumption of whole grains can lead to malnutrition and even affect reproductive capacity. It is recommended to eat coarse grains no more than three times a week, with 50 grams each time being appropriate.
3. The Elderly
The metabolic capacity of the elderly decreases, and the regulatory and adaptive abilities of the digestive system also decline. Long-term consumption of excessive amounts of high-fiber foods like whole grains can hinder protein replenishment, reduce fat intake, and lead to deficiencies in trace elements, thereby affecting the functions of bones, organs, and the hematopoietic system.