Because dogs hold such a high value in our hearts, most owners want the absolute best for their canine companions. You may think feeding your dog the foods you enjoy most is a special treat for him, but you might actually be doing harm.

Some human food can be perfectly safe for your dog, but other foods such as butter, raisins, onions and chocolate can be toxic. The American Kennel Club offers the following to keep your dog safe:

4 No chocolate. This is not just a myth. Chocolate can be extremely harmful to your dog. Chocolate contains methylxanthines, which can stop a dog’s metabolic process. It also contains theobromine and caffeine, which speed the heart rate and stimulate a dog’s nervous system. Ingesting even a small amount can cause diarrhea and vomiting in your dog. Larger amounts can lead to seizures, abnormal heart function and death.

4 No added sugar. Regular sugar will have the same effect on dogs that it does on humans: hyperactivity followed by a crash. If you continue to give your dog added sugar, it may eventually lead to obesity. The artificial sweetener Xylitol, however, is toxic to dogs. Xylitol is found in lots of sugar-free gum, candies and mints. Avoid feeding your dog any foods that contain added sugar or artificial sweeteners.

4 Take preventative measures. Be sure that all human food is out of your dog’s reach. Make an effort to keep the most toxic foods, like chocolate and sugary foods, as far from your dog’s reach as possible. Always remind your guests not to feed your dog human food. Also, having a well-trained dog can be helpful in avoiding the consumption of hazardous foods. The command “leave it” can be extremely effective.

4 Do your research and speak to your vet. Some human foods like cooked eggs, plain turkey, fish and cheese can be perfectly safe and can have nutritional benefits for your dog. Everything should be in moderation.

4 If your dog ingests something harmful ... Call your veterinarian immediately. Based on your dog’s weight and the amount of toxic food ingested, your vet may recommend that you closely monitor his/her behavior. In serious cases, your veterinarian may recommend you take your dog to the clinic. You may also want to consider contacting a poison control center for pets.