1, cucumber, pumpkin, ixeris sonchifolia and yam are rich in vitamin C, while cucumber, pumpkin and ixeris sonchifolia contain vitamin C decomposing enzymes. If yam is eaten with these foods, it will easily lead to the decomposition and destruction of vitamin C in yam and reduce the nutritional components in yam;

2. Pig liver Pig liver is rich in trace elements such as copper, iron and zinc. Vitamin C in yam will accelerate oxidation and be destroyed when it meets metal ions such as copper, iron and zinc, which will reduce its nutritional value, so it is not suitable for eating with pig liver.

3. Banana, yam and banana are rich in dietary fiber. After eating, dietary fiber will absorb water and swell, resulting in satiety. If yam and banana are eaten at the same time, it is easy to cause abdominal distension and even abdominal pain;