Whole grains contain more crude fiber and less starch. There is no cellulase in the human body and cannot break down cellulose into glucose for absorption. The main cause of obesity is excessive intake of fat and starchy foods, but insufficient exercise cannot effectively consume food intake, resulting in the accumulation of fat in the body. Under the action of amylase, starch can be broken down into glucose and absorbed by the body. The inexhaustible supply of glucose is converted into glycolipids for storage, leading to obesity.Why can you lose weight by eating whole grains
The absorption of many nutrients in the gastrointestinal tract will be blocked at the same time. In addition, indigestible substances in dietary fiber are often the carbon source for the large-scale reproduction of anaerobic microorganisms. The proliferation of a large number of bacteria in the intestine can stimulate intestinal peristalsis and reduce the digestion and absorption of nutrients.
People mainly obtain dietary fiber from plant foods such as melons, fruits, vegetables and grains, and the energy content of digestible plant fiber is very low. Therefore, people get very little energy from it. Although crude fiber is rich in energy, because there is no fibrinolytic enzyme in the human body, it cannot break down crude fiber and obtain energy from it. The water-holding capacity of dietary fiber has the function of a sponge, which can regulate the absorption of glucose and fat by the intestinal wall, promote fat decomposition, accelerate gastrointestinal motility, and has obvious lipid-lowering effects.
However, whole grains are rich in dietary fiber, which can create a feeling of satiety and chewiness, which can help avoid eating too quickly, resulting in one bite. The digestion and absorption time of coarse grains into the human body is also relatively long, which is more resistant to satiety than white rice noodles. In addition, eating more whole grains can stimulate defecation and reduce the harm of toxins to the human body. In general, many coarse particles are rich in strongly oxidative compounds that enhance cell viability. It keeps the skin supple and radiant for a long time.
Do not suddenly increase or decrease the intake of whole grains, which can cause intestinal discomfort. For those who mainly eat meat on weekdays, in order to adapt to the intestines as soon as possible, increase the intake of coarse grains step by step, not too hasty. Eating whole grains does not mean eating whole grains only. In addition to considering tastes and hobbies, consider a combination of meat and vegetables, a balanced diet, and make appropriate adjustments to individual circumstances.
Read more tips about health and fitness http://www.growmorehealth.com