1. Sweet potato

Sweet potato is a very common agricultural product, which is planted all over China. It has the functions of strengthening the spleen and stomach and kidney yang, and it is rich in nutrients such as carotene, folic acid, vitamin C and potassium, which can prevent cardiovascular diseases. In addition, eating more sweet potatoes in life is also good for the skin, which can enrich blood and improve facial color.

2. Sweet potato

In our daily life, everyone is very familiar with this kind of food. In fact, the scientific name of sweet potato is called cold potato, which is widely planted in some southern areas of China, Guizhou, Hunan and other places. As one of the economic crops, it has a very high yield per mu and tastes delicious at the same time, which is welcomed by many people.

As a kind of food on the market in summer, cold potato grows underground and we eat its root tuber, which contains a lot of carbohydrates. Therefore, eating some cold potato properly in summer can also play the role of clearing away heat and resolving things, promoting fluid production and stopping stagnation. For female friends, eating some cold potatoes can also have the effect of beauty beauty, because it contains a lot of vitamin C, so it can resist the free radicals in our cells and enhance our body's absorption of vc, thus improving our immunity, playing the role of beauty beauty, and making our skin more smooth and shiny.

Step 3: tomatoes

Tomatoes are rich in lycopene. The higher the lycopene content in human plasma, the lower the incidence of prostate cancer, lung cancer and coronary heart disease. The content of lycopene is negatively correlated with the content of soluble sugar in tomatoes, that is, the more unsweetened tomatoes are, the higher the lycopene content is. In addition, the lycopene content in tomatoes produced in summer is relatively high, which is mainly because the abundant sunshine and long illumination time in summer will greatly increase the lycopene content; In winter, tomatoes planted in greenhouses have low lycopene content. The content of lycopene in yellow varieties of tomatoes is very low. Red varieties of tomatoes have higher content. Generally speaking, the redder the color of tomatoes, the higher the lycopene content, while the lycopene content of immature and semi-mature cyan tomatoes is relatively low, and cooked tomatoes are more conducive to nutrient absorption than raw tomatoes. In addition, tomatoes also contain coumaric acid and chlorogenic acid, which can eliminate carcinogens in human body.