If you're not giving your dog nutritional supplements each day, it's time to start. You might not realize this, but your dog needs vitamins and supplements as much as you do. Dogs often suffer from nutritional deficiencies, especially if they're not eating the right foods. But there is something you can do to help your dog get the nutrients they need. You can give them daily nutritional supplements. Here are just four of the ways you can help your dog by adding nutritional supplements to their daily diet.