Diet is extremely important during the growing months of a dog's life. It is recommended that your puppy is fed a namebrand food made by a national dog food company (not a generic or local brand) and a diet made for puppies. This should be fed until your puppy is about twelve to eighteen months of age, depending on its breed and size. You should only buy brands that have been certified by an independent organization as complete and balanced. In the United States, you should look for food that has been certified by AAFCO, an independent organization that oversees the entire pet food industry and certifies that the food has met the minimum requirements for nutrition. In Canada, look for foods approved by the Canadian Veterinary Medical Association (CVMA) or foods that are labeled as having undergone rigid testing with food trials. For optimal brain and eye development, the puppy food should contain high levels of DHA (docosahexaenoic acid), an omega-3 fatty acid.
Feeding a dry, canned, or semi-moist form of puppy food is acceptable as long as the label states that the food is intended for growth and/or development and is "complete and balanced." This means that the food is nutritionally complete and
meets the needs of growth and development.
Each of the types of food has advantages and disadvantages. Dry food is definitely the most inexpensive. It can be left in the dog's bowl without spoilage for longer periods of time than canned or moist foods. Semi-moist foods may be acceptable, depending on their quality. The texture may be more appealing to some dogs, and they often have a stronger odor and flavor. However, semi-moist foods are often high in sugar and calories and should be carefully chosen based on their nutritional qualities rather than taste, packaging, or consistency. Canned foods are a good choice to feed your dog, but are considerably more expensive than either of the other forms of food
Canned foods contain a high percentage of water, and their texture, odor, and taste are very appealing. However, canned food will dry out or spoil if left out for prolonged periods of time. Canned food is generally more suitable for meal feeding rather than free choice feeding. Table or people foods are not usually recommended for pets. Because they are usually very tasty, dogs will often begin to refuse their well-balanced dog food in favor of table food. If you choose to give your puppy table food, be sure that at least ninety percent of his diet is from a quality commercial puppy food. If not, follow a properly formulated recipe that has been developed by a formally trained veterinary nutritionist. We enjoy a variety of things to eat in our diet. However, most dogs actually prefer not to change from one food to another unless they are trained to do so by the way you feed them. Do not feel guilty if your dog is happy eating the same food day after day, week after week.