2. 350g of fresh pig spine and 200g of spinach.

3. Wash the pig spine with clear water, chop it up, put it into a casserole, add a proper amount of clear water, first cook it with strong fire and then simmer it for two hours; Then put the washed spinach into the soup, cook for 10 minutes, add seasoning, and eat spinach in the soup.

4. Pig spine contains many inorganic salts such as magnesium, calcium, phosphorus and iron, and spinach contains corresponding enzymes, so it has a good effect on supplementing inorganic elements such as magnesium, iron, calcium and phosphorus.