Dogs will not have diarrhea under normal circumstances when they eat vegetables. Eating vegetables can clear away heat and reduce internal heat and prevent constipation. However, vegetables should not be given to dogs casually. Some vegetables can easily kill dogs directly. If you do not eat vegetables randomly, they will not directly cause diarrhea in dogs.

Vegetables that dogs cannot eat:

1. Mushrooms. Most wild mushrooms are highly poisonous, and dogs may be poisoned and die if they eat them.

2. Pea. Pea contains alkaloids. After a dog eats peas, this alkaloid will irritate its intestinal mucosa and cause vomiting, diarrhea, etc.

3. Onions. The n-propyl disulfide contained in allium vegetables can oxidize hemoglobin into Heinz's bodies, causing acute hemolytic anemia.

4. Chili. Chili peppers can irritate the dog’s gastrointestinal tract and easily induce inflammation. If the dog eats it, it will feel uncomfortable and may bite randomly and injure its mouth.

5. Bean sprouts. Although bean sprouts are rich in vitamins and crude fiber, they are difficult for dogs to digest.

6. Cauliflower. Dogs eating cauliflower will irritate their gastrointestinal tract and cause diarrhea, loose stools, etc.

7. Tomatoes. Dogs that eat too much tomatoes are prone to symptoms such as cramps and arrhythmia.