Is it okay to feed my puppy adult dog food as their main diet?

The young puppy should be on puppy food in order to provide the balanced nutrition she requires for healthy growth and development, a large breed puppy food is recommended for optimal joint health. It is not ideal for adult dogs to be on puppy food as they may continue to 'grow' and become overwieght so you will have to monitor very closely if he has access to puppy food that he does not become obese

I would not recommend feeding this food exclusively to a 6 month old dog - it is formulated for adult dogs and not for growth. It is best to feed dogs puppy food until they reach 1 to 2 years of age depending on the breed. Foods formulated for growth have different protein and mineral levels that ensure bones and joints are growing properly. If you feed an adult food it can result in nutritional deficiencies and poor growth.

Yes, puppy food is a "hotter" diet higher in protein and carbs. It is formulated for a growing puppy that needs the extra nutrition. An adult dog may gain excessive weight if fed a puppy formula regularly. The higher protein content may also put undue stress on the older dog's kidneys. If possible, feed then separately or take up the puppy food if you free feed.

I would not recommend pupy food for adult dogs unless absolutely no alternative is available. Puppy formulas tend to be higher in minerals and proteins for growth and are richer than recommended for regular maintenance diets

Puppy food certainly won't hurt Iggy if he only eats it for a week. The differences between puppy food and adult food are mainly in the calcium/phosphorus balance to help promote proper bone growth, as well as being a bit more calorically dense. As Jessica explained so well, it's important to mix the old and new foods together for about a week whenever possible to minimize the chance of developing stomach upset. I would also look at the caloric density (kcal per can) listed to see if you need to adjust the amount of canned puppy food that he's getting relative to the number of calories he was getting from adult food. I hope that everything goes well!

Puppy food is higher in calories and has different quantities of fat, protein and certain vitamins and minerals than adult dog food. As long as Max is not overweight it should be okay for him to have puppy food as long as he doesn't develop diarrhea or other gastrointestinal upset.

Yes that is perfectly ok. They are both balanced dog foods. Just check the bag to see how many calories per cup so you can adjust as needed (meaning if more calories in the puppy food you will have to feed a little more adult food or vice versa). I hope this helps and thank you for using Petco Pet Education Center, formerly Petcoach!