Your puppy is growing fast. He needs (and has!) a lot of energy. It's important that you serve him food specially formulated for his stage of life. But selecting the right food isn't enough. You also need to determine the right amount to feed his particular age, size and activity level.

If you are switching brands, please allow seven to ten days to ease the transition from your puppy's current food. Each day, simply feed a little less of the current food and a little more of the new food, until you're feeding the new food exclusively. As well, follow your veterinarian's instructions about how long to keep him on puppy food. Most breeds appear nearly full-grown at six months, yet their insides are still developing and can benefit from food made especially for puppies. Some large breed puppies may need to remain on special puppy diets for up to two years.

If he's too thin or too heavy, gradually reduce or increase the amount you feed him as appropriate. Of course, always consult with your veterinarian if you have any questions.