Macadamia Nuts. Dogs shouldn't eat macadamia nuts or foods with them because they can be fatal. As few as six raw or roasted macadamias can make them ill. Symptoms of poisoning include muscle tremors, weakness or paralysis of the hindquarters, vomiting, elevated body temperature, and rapid heart rate.hat Dogs Can Eat. Ask your vet to recommend a quality dog food to be sure your dog has a healthy, well-balanced diet. A well-designed food gives your dog all the nutrients it needs for an active and healthy life.