The taste of tomatoes will show a certain sour taste, which is contained in the ascorbic acid is also known as vitamin C, can play a role in promoting collagen synthesis, and improve the absorption rate of iron. Tomatoes also contain lycopene, if at a certain temperature and the presence of oil, lycopene can easily precipitate into the body, scavenging the body of free radicals, prevent aging and antioxidant effects, lycopene is very powerful. Tomatoes also contain some dietary fiber, into the body to promote intestinal peristalsis, maintain the role of intestinal microecology. The soup made from tomatoes has a sour taste, which makes the organic acids in it more obvious in promoting appetite.