Best Answer: At 6 weeks you can feed 3 times a day. You can also phase out the canned food and feed nothing but a dry kibble. You can cut larger breeds back to 2 meals a day at 3 months.f you look at the back of the puppy food bag, there is usually a chart there telling you age/ weight/ amount to feed for the entire 24 hour period. My puppy, for example, needs to have 2-2/3 cups food per day but if I give her several treats that day she may only have about 2 cups of food.