If you are concerned that your dog's food may be toxic, your best bet is to check with your veterinarian or pet food manufacturer. They can provide information and advice about dog food safety. There are a few more ways to help you determine if your dog's food is safe:
Read the label: The label on the dog food package often contains information about the manufacturer as well as information about the ingredients and nutritional content of the dog food. Reading labels can help you understand whether a dog food meets your dog's dietary needs and determine if any potentially harmful ingredients are present.
Check the production date: Dog food usually has a "best before" or "shelf life" date, which indicates the maximum time the dog food can be kept under appropriate conditions. If dog food has expired, it may have lost nutrients or gone bad, which is detrimental to the dog's health.
Check that the packaging is complete: If there are tears or wet spots on the dog food packaging, this may mean that the dog food has been exposed to moisture. or contaminated environment and may be unsafe.
Watch your dog’s reaction: If your dog eats a new dog food and reacts abnormally, such as vomiting, diarrhea, or skin sensitivity, this may be a sign that there is a problem with the food.