[crazy4cats]

Hi Guys-
Honestly, you never really HAVE to switch. Food labeled as puppy and/or all life stages are OK to feed forever. Food labeled as Adult or Maintenance should only be fed when the pup is full grown. Large breeds between 1 and 2 years. Small breeds between 6 months to a year. Just make sure that the large breed pups stay lean and grow at a slow steady pace to avoid joint issues.