A: My personal preference is not to use food at all. When I have trained dogs for obedience, I have always used the verbal praise-reward method. It works well, especially with some dogs who are not motivated by food rewards.
Many people do use treat-based training with success, but I don't recommend offering table scraps as the treat. Giving a dog people food—in training or just as a general reward—may give the dog the idea that such food is fair game. It might encourage your pet to steal food from the table or from people, especially kids or guests.
In addition, many human foods can be toxic to dogs. These include chocolate, grapes, raisins, macadamia nuts, and xylitol (a sweetener often used in gum, candy, and baked goods).
As an alternative to table scraps, you could train your dog with snacks that are tasty, low in fat, and commercially prepared for training. But keep in mind that soft chew snacks may be high in sugar, which is bad for dental health. When shopping for treats, read package labels and choose premium varieties that list meat as the first ingredient.
Use only small amounts for training purposes—treats should not interfere with the consistency of a normal diet or greatly affect the caloric intake for the size and age of the dog. The training sessions should be short in length and repeated several times throughout the day. For young dogs, the training period should be no longer than five minutes.
Finally, the most important training tip is to keep it positive. If you're getting frustrated with your puppy's naturally short attention span, take a break. Strive to end the session on a positive note so your pet will be eager for the next time.
Janet Tobiassen, DVM, a veterinarian based in the state of Washington, has been practicing and writing about vet medicine since 1999. She started training dogs at age 12, through 4-H, and continued pet therapy and obedience training in veterinary school and beyond.

When, Why, and How to Start Feeding Your Pup Grown-up Nutrition
As your puppy grows into an adult dog, he needs nutrition that keeps his body as strong as your love, and that means a high-quality, premium adult formula such as IAMS™ ProActive Health™ Adult MiniChunks
Why move your grown-up pup to a premium adult dog food? Because quality counts. It's crucial to continue his superb puppy nutrition into adulthood. Downgrading to a lower-quality brand at this stage of his life may upset his digestive system, and won't provide him with the same level of nutritional excellence he was raised on.
Think of a baby. When it's time to start giving him solid food, you wouldn't dream of feeding your child anything less than the best nutrition you can buy. The same is true for your maturing puppy. He needs the best age-appropriate food there is to help maintain his overall health.
Premium foods, such as IAMS, are specifically designed to provide your dog with a food that has:
What does it all add up to? A happy, healthy dog. With premium dog food, you can expect key indicators that contribute to providing your dog with a long, healthy life:
Founded on more than 60 years of research into canine nutrition, premium formulas from IAMS help maintain your dog's health and provide him with the nutrition he needs for a long life. Basic brands may not provide these benefits or match the level of expertise that goes into every bag of dog food from IAMS.
Your puppy's transition to adult food should begin when he approaches adult height. His breed type will also help determine when to switch. Small-breed dogs tend to mature physically much sooner than large-breed dogs. Follow these guidelines to help you decide when to switch formulas:
Large- and giant-breed dogs, those weighing more than 50 pounds when fully grown, might not be ready to switch to an adult food until they're 12 to 24 months old.
To avoid upsetting your dog's intestinal tract or causing diarrhea, make the change from a puppy formula to an adult diet over a period of four days by mixing the two foods in your dog's bowl.
How much food should you give your dog? Check the daily feeding recommendations established by the pet-food manufacturer and read the label. Dan Carey, DVM and Director of Technical Communications at IAMS, suggests using the recommendations, then weighing your dog each week. If he's gaining or losing weight and shouldn't be, slightly decrease or increase his daily intake, and weigh him again in another week.
If you have specific concerns about your dog's weight, talk to your veterinarian. He or she can assess your dog's needs and give you a feeding recommendation.