Puppy feeding and growth
How much should a 14 month old puppy eat?
Last updated 23 September 2026 · How we write and check this
Short answer
By fourteen months, most large breeds are close to their adult weight and can usually move onto adult food if weight has been stable for a few weeks. Giant breeds are typically still growing, often not reaching full size until 18 to 24 months, so they usually still need a puppy or large breed formula.
Large breeds nearing the finish line
A large breed dog, such as one expected to weigh 25 to 40 kg (55 to 88 lb) as an adult, has usually done the bulk of its growing by fourteen months. If three consecutive monthly weigh ins show no meaningful change, that is a reasonable signal to begin transitioning to adult food over seven to ten days.
Giant breeds still climbing
Giant breeds, often defined as those exceeding 45 kg (99 lb) as adults, are usually still adding noticeable weight and muscle at fourteen months. Keeping calcium and calorie levels appropriate to a still growing dog matters here, which is why staying on a large breed or giant breed puppy formula is generally recommended a while longer.
Confirming readiness before switching
Rather than relying on age alone, weigh the dog monthly and compare against typical breed growth timelines. A dog that is still visibly gaining, or whose ribs are becoming harder to feel because muscle is still developing over them, usually is not quite ready for adult food yet.
Key takeaways
- Many large breeds are close to adult weight by fourteen months and can begin the switch to adult food.
- Giant breeds are usually still growing at this age and need puppy appropriate nutrition.
- Confirm growth has plateaued over several weigh ins before switching foods.
- Transition any new food gradually over about a week to ten days.