When to Switch from Puppy Food to Adult Dog Food?

A puppy does not need puppy food indefinitely. As a young dog matures, its nutritional needs change, and there comes a point when adult dog food is a better fit. Exactly when that point occurs varies from dog to dog.

The dog's eventual size plays a particularly important role here. Small dog breeds generally finish growing earlier than large dog breeds. It is therefore better to consider your own dog's development rather than relying solely on a fixed age.

Why does a puppy need special food?

Puppy food is tailored to the growth phase. In a relatively short period, a young dog develops muscles, bones, and other body tissues, among other things, and therefore needs a different nutritional balance from an adult dog.

Puppy food takes the following factors into account, among others:

• Energy requirements during growth.
• The need for high-quality proteins.
• A balanced amount of vitamins and minerals.
• The body's development during the growth phase.

Once the main growth phase is over, these needs change, and food for adult dogs may become more suitable.

At what age should you stop feeding puppy food?

There is no age that applies to every dog. The age at which a dog reaches adulthood is closely related to its breed size and expected adult size.

As a general indication, you can take the following differences into account:

• Small dog breeds are often largely fully grown by around 9 to 12 months.
• Medium-sized dog breeds often reach their adult size at around 12 months.
• Large dog breeds may continue growing for approximately 15 to 18 months.
• Very large dog breeds may need approximately 18 to 24 months to reach their full size.

These are guidelines. Breed, individual development, and body condition may mean that the appropriate time to switch is earlier or later.

Why do large dogs continue growing for longer?

A puppy of a large dog breed needs to develop considerably more body mass before reaching its adult size. As a result, the growth period lasts longer than it does for small dogs.

Controlled development is particularly important during this longer growth phase. Puppy food for large breeds may therefore be formulated differently from food for smaller puppies.

Why not switch too early?

If you switch to adult dog food too early, a puppy receives food formulated for the maintenance needs of an adult dog rather than for growth.

It is therefore advisable to continue feeding puppy food as long as your dog is clearly still in the growth phase.

Why should you not continue feeding puppy food for too long?

Continuing to feed puppy food for longer than necessary is not always advisable either. Puppy food may have a different energy density from adult dog food.

When growth is largely complete and energy needs decrease, the same amount of puppy food may therefore provide more energy than the dog needs. If portions are not adjusted sufficiently, this can contribute to weight gain.

How do you know whether your dog is ready for adult food?

Age is a useful starting point, but also consider your dog's development. The expected adult weight and body condition provide additional information.

Pay attention to the following, among other things:

• The dog's age.
• Breed and expected adult size.
• Weight development.
• Body condition.
• Whether the main growth phase is largely over.

If you are unsure about the right time, a veterinarian can help assess whether your dog has reached the end of its adult growth phase.

How do you switch from puppy food to adult dog food?

When it is time to switch to adult dog food, it is advisable not to change the food completely from one day to the next. A gradual transition gives the digestive system time to get used to the new composition.

A practical transition schedule could look like this:

• Days 1 and 2: approximately 75% puppy food and 25% adult dog food.
• Days 3 and 4: approximately 50% puppy food and 50% adult dog food.
• Days 5 and 6: approximately 25% puppy food and 75% adult dog food.
• From day 7: 100% adult dog food.

Not every dog responds to a food change in the same way. If your dog has a sensitive digestive system, the transition can therefore be spread over a longer period.

Which adult food should you choose after puppy food?

Switching to adult dog food is also a good time to reassess your dog's nutritional needs. Not every adult dog needs the same food.

When choosing, you can take the following into account:

• Breed size.
• Body weight.
• Activity level.
• Lifestyle.
• Any specific nutritional needs.

For example, a very active adult dog may have different energy needs from a dog that mainly lives quietly indoors.

Continue monitoring your dog's weight after the switch

After switching to adult dog food, it is wise to continue monitoring your dog's weight and body condition. The recommended amount of adult dog food may differ from the amount of puppy food your dog was used to.

Therefore, use the feeding guidelines for the new food as a starting point and adjust the amount if necessary based on your dog's condition and activity level.