We all know that eating more fruits and vegetables makes people healthy. What is the scientific reason behind this? Recently, a neuroscientist at St. Louis University published a paper saying that it is all kinds of endotoxin in green plants that "exercise" our somatic cells and make us healthier. He pointed out that in order to resist pests, green plants will form a variety of endotoxin in the body, just like pure natural "fertilizer". After we eat this kind of endotoxin, they will cause slight working pressure on the cells of the body, practice the tolerance of cells and make the tissue cells more active. For example, algae contain a neurotoxin called kainic acid. Eating too much will damage the brain nerves, but eating a little in moderation can improve the charm and memory of nerve cells. Fresh fruits and vegetables are an indispensable part of a reasonable diet.

It is the main source of vitamins, minerals, dietary fiber and phytochemicals, which is of great significance to keep the stomach smooth and slim, promote health and prevent infectious diseases. The recommended intake of vegetables in Dietary Guidelines for China Residents is 300-500g per day, preferably half of dark vegetables and 200-400g of fresh fruits, and the intake of sweet potatoes should be increased. Although fruits and vegetables have many similarities in nutritional value and health care efficacy, their nutritional components still have their own characteristics. Generally speaking, most vegetables contain more vitamins, minerals, dietary fiber and phytochemicals than fresh fruits, and the kinetic energy of vegetables is generally less than that of fresh fruits, so fresh fruits cannot be replaced. The nutritional components of dark vegetables are generally higher than those of light vegetables and fruits. Dark vegetables refer to dark green, bright red, orange and purple fruits and vegetables.

First of all, encourage the choice of fresh seasonal vegetables to prevent nutrient loss due to long storage time. Green tea with green lemon: the antioxidant dose of green tea is very high, but if you add a small amount of green lemon to tea, it may make our body digest and absorb antioxidants as high as 13 times. Sodium citrate and vitamin C in green lemon can increase the efficacy of catechin in green tea, improve human immunity and reduce the risk of cancer, cardiovascular and cerebrovascular diseases and Alzheimer's disease. Broccoli with oranges: Broccoli and oranges are also recognized as super foods with strong antioxidant capacity and extraordinary nutrition.

However, if you really want to increase the iron content in broccoli fruit salad, you can add some juice to your dish. This combination will make the ingredients more delicious and important. Vitamin C will help your body absorb twice as much iron from the same amount of broccoli. Matching fruit of apple: Apple contains high content of quercetin, which is a strong antioxidant. When drunk with apple strawberry, red raspberry or Brazilian raspberry, quercetin will closely combine with catechins in these fruits and react in the body, thus avoiding platelet aggregation and preventing heart disease and stroke. Generally speaking, they can absorb more and more important antioxidants than eating these foods alone.