Dogs will be poisoned if they eat food:

1. Dogs will be poisoned if they ingest food containing alkaloids, such as theobromine, theophylline, etc.

2. Dogs may be poisoned if they ingest onions, green onions, garlic, etc.

3. Dogs will be poisoned if they ingest rat poison and other items.

Other situations of dog poisoning:

1. Drugs can also cause poisoning, which is usually chronic and the onset time is uncertain.

2. Organic matter can also cause poisoning, such as organophosphorus pesticide poisoning, which usually occurs within half an hour.