Many of the nutrients our body needs are derived from the intake of vegetables. An adult in daily life should consume 200-500 grams of vegetables a day to meet the needs of the body. In life, people often rely on the price and taste of vegetables as the selection criteria. In fact, this is unscientific. Judging the nutritional value of vegetables is mainly the number of essential vitamins and iron, salt, and cellulose contained in the vegetables.
Through the analysis of the nutritional components of various vegetables, scientists found that the nutritional value of vegetables is closely related to the color of vegetables. Deep color has high nutritional value, light color has low nutritional value, and its arrangement order is "green vegetables - yellow, red vegetables - colorless vegetables".
Scientists also found that similar vegetables have different nutritional values ​​due to their different colors. Purple eggplant is rich in vitamin P, it can increase the pressure resistance of microvascular wall, improve blood vessel function, and it is very beneficial to patients with hypertension, skin purpura, and diseases prone to bleeding tendency.
Yellow carrots have higher nutritional value than red carrots. In addition to containing a large amount of carotenoids, yellow carrots also contain a strong anti-cancer effect of the yellow pigment, which can prevent cancer. Scientists also discovered that different parts of the same vegetable have different nutritional values ​​due to their different colors, and their nutritional value is also different.
The onion green part of the green onion is much higher than the light green part. The content of vitamin B1 and vitamin C per 100 grams of green onions is also less than half of the light green part. The green celery leaves are lighter than the lighter celery leaves and stems. 6 times more carotene, vitamin D 4 times more.
In addition, because each type of vegetable contains different types and amounts of nutrients, and the nutritional needs of the human body are many, so when choosing vegetables, in addition to paying attention to the color depth of vegetables, we should also consider a variety of vegetables and vegetables and Eat meat together.
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