1, patients with dyspepsia: Although sweet potato is sweet and delicious, nutritious and cheap, patients with indigestion and stomach upset should not eat it. Chinese medicine believes that people with qi stagnation and dampness blocking the spleen and stomach should be careful when eating sweet potatoes.

2. Patients with kidney calculi Oxalate: After the patients eat sweet potatoes, kidney calculi's condition will get worse.

3. Patients with colitis: Although sweet potato is rich in fiber and has the function of moistening intestines, it is easy to cause diarrhea and aggravate the patient's condition.