A lot of people think: fruit and vegetable nutrition composition is similar, do not eat vegetables, and eat a pound of fruit a day is enough, not only nutritious enough, it is a good time to lose weight, then it becomes a fruit breakfast and dinner meals. A few women who hold this idea, but the question is, vegetables can completely replace fruits?
1, as a whole, the fruit and vegetable contain vitamin C though and minerals, but the contents have some differences. Only jujube fruit have hawthorn and citrus, kiwi fruit and other rich with Vitamin C, other fruit contains vitamin C and minerals are not as vegetables. The green leafy vegetables, vitamin C and iron content are high, which for the developing young people and women is very important to eat fruit of light is not achieve the full effect of nutritional supplements.
2, fruits and vegetables of different vegetables in the nutritional structure, vegetables are not only much higher than the dietary fiber content of fruit, but is not it contains soluble fiber, with the promotion of intestinal peristalsis, intestinal clearance of toxic substances such as savings, it can effectively to prevent constipation, hemorrhoids, prevention of colorectal cancer, which is unable to achieve the effect of eating fruit. Contained in fruits, mainly soluble fiber – pectin, it cannot easily be absorbed; it will slow down gastric emptying.
3 sugars contained in fruits and vegetables and the role of the body not the same as most vegetables contain carbohydrates are starch polysaccharides, it need to go through the human digestive tract of various enzymatic hydrolysis into simple sugars before they can be absorbed slowly Therefore, the body does not cause fluctuations in blood sugar. The sugar contained in fruit is mainly simple sugars (fructose, glucose) and disaccharides (sucrose), which enters the body, just a little digestion, can be dissolved in the blood. Therefore, a large number of fruit within a short time blood glucose levels will soon rise, it is bad for healthy. These simple sugars go into the human liver, the very easy to change into fat, make people fat.
Of course, the fruit has its unique function, such as most fruits contain organic acids, it can stimulate the secretion of digestive juice; different fruits and vegetables also have a different therapeutic effect. So, we should be 400 grams -500 grams of fresh vegetables every day, and then eat 100 grams of -200 appropriate grams of fruit, as a nutritional aid.