Bringing a puppy home is one of the best things in the world — and one of the most overwhelming. There's a lot of conflicting advice out there about what to feed them, how much, and when to switch to adult food. This guide cuts through the noise with straightforward, evidence-based information to help you make confident choices for your pup.
Why Puppy Food Is Different from Adult Dog Food
Puppies aren't just small dogs. They're going through rapid growth and development that places very specific demands on their diet. Compared to adult maintenance food, puppy food is formulated to provide:
- Higher protein to support muscle and tissue development
- Higher fat for energy and brain development
- More calcium and phosphorus for healthy bone and teeth formation — but in the correct ratio (typically around 1.2:1 calcium to phosphorus)
- More calories per cup to fuel their fast-growing bodies
- DHA (docosahexaenoic acid), an omega-3 fatty acid that supports brain and eye development, often derived from fish oil
Feeding an adult food to a growing puppy — or feeding a puppy food formulated for large breeds to a small breed pup — can create nutritional imbalances with real health consequences. Getting this right matters.
Australian Pet Food Standards: What to Look For
Australia has its own pet food standards framework, and understanding it helps you choose products with confidence.
AS 5812:2017 — The Australian Standard for the Manufacturing and Marketing of Pet Food
This is the key Australian Standard you'll see referenced on quality pet food products. Published by Standards Australia, AS 5812:2017 sets out requirements for:
- Nutritional adequacy — minimum nutrient levels that must be met for the product to be sold as "complete and balanced"
- Labelling — what must appear on the label, including ingredients list, life stage suitability, feeding guidelines, and manufacturer contact details
- Safety and hygiene — manufacturing processes to minimise contamination
- Analytical testing — how nutrient claims are verified
What "complete and balanced" means: A food labelled "complete and balanced for puppies" has been formulated (and ideally tested) to meet all of a puppy's nutritional requirements as a sole food source. A food labelled "complementary" or "treat" is not nutritionally complete and should not be the main diet.
AAFCO Nutrient Profiles
You'll also see references to AAFCO (the Association of American Feed Control Officials) on many products sold in Australia. AAFCO sets nutrient profiles for dogs at two life stages: Growth (puppies) and Adult Maintenance. Because Australia doesn't have a mandatory government certification scheme, many Australian manufacturers voluntarily comply with AAFCO profiles, which are internationally recognised as a rigorous benchmark.
Look for: "Formulated to meet AAFCO Dog Food Nutrient Profiles for Growth" or "Formulated for All Life Stages."
PFIAA — Pet Food Industry Association of Australia
The PFIAA is Australia's peak industry body for commercial pet food. Members voluntarily commit to producing food that meets AS 5812:2017. While membership isn't a guarantee of quality, it does indicate a manufacturer that takes standards compliance seriously.
How to Read a Pet Food Label in Australia
Under AS 5812:2017, the following must appear on the label:
- Ingredient list — listed in descending order by weight before processing
- Guaranteed analysis — minimum crude protein, minimum crude fat, maximum moisture, maximum crude fibre
- Life stage statement — who the food is suitable for (puppy, adult, all life stages)
- Feeding guide — recommended daily amounts
- Manufacturer details — name and address
What labels are not required to show is the exact percentage of each ingredient — so a food that lists "chicken" first might still have a relatively low overall meat content. Some premium brands voluntarily disclose this; it's worth looking for.
Dry Food vs Wet Food for Puppies
Both dry (kibble) and wet food can form the basis of a healthy puppy diet, provided they're nutritionally complete and appropriate for puppies. Here's how to think about each.
Dry Puppy Food (Kibble)
Advantages:
- Convenient and cost-effective
- Longer shelf life once opened (several weeks if stored correctly)
- Some dental benefit from the mechanical action of chewing — though this is modest and not a substitute for teeth brushing
- Easy to measure for portion control
- Can be used as training treats
Things to consider:
- Kibble is low in moisture (typically around 10%), so fresh water must always be available
- Some puppies find dry food less palatable, especially if they're used to wet food
- Smaller breeds may struggle with larger kibble sizes — look for puppy-specific kibble sized appropriately for small breeds
- Heavily processed at high heat, which can reduce some nutrients (quality manufacturers compensate by adding them back)
What to look for in a dry puppy food:
- A named animal protein (chicken, beef, lamb, fish) as the first ingredient — not a generic "meat meal" or "animal by-products"
- No artificial colours, flavours, or preservatives
- Added DHA from a named source
- Meets AAFCO Growth or All Life Stages profile
- Appropriate kibble size for your breed
Wet Puppy Food (Canned or Pouch)
Advantages:
- Higher moisture content (70–80%), which contributes to hydration — particularly useful for puppies who don't drink enough water
- Generally more palatable — helpful for fussy pups or those recovering from illness
- Closer to a dog's ancestral diet in terms of moisture content
Things to consider:
- More expensive per calorie than dry food
- Shorter shelf life once opened (refrigerate and use within 2–3 days)
- Can contribute to softer stools, especially if transitioning too quickly
- No dental benefit
- Calorie density varies significantly — check feeding guidelines carefully to avoid over or underfeeding
What to look for in a wet puppy food:
- Same protein-first principles as dry food apply
- "Complete and balanced" labelling — many wet products are labelled "complementary," which means they need to be combined with other foods
- Minimal fillers like excessive gravy, starch, or gelling agents
- No added sugar or artificial flavourings
Mixing Dry and Wet Food
Many owners feed a combination — dry food as the base diet with wet food added for palatability, variety, or hydration. This is perfectly fine, provided the total diet remains nutritionally balanced. If combining, adjust quantities to avoid overfeeding.
Large Breed vs Small Breed Puppy Food
This distinction matters more than many owners realise.
Large and giant breed puppies (those expected to exceed 25 kg as adults) are prone to developmental orthopaedic diseases like hip dysplasia and osteochondrosis if they grow too fast. Large breed puppy foods are specifically formulated with:
- Controlled calcium levels (excessive calcium in large breed puppies is a real risk)
- Lower calorie density to encourage slower, steadier growth
- Appropriate calcium-to-phosphorus ratios
Do not feed a standard puppy food or "all breeds" puppy food to a large breed puppy. Look specifically for "large breed puppy" on the label.
Small and toy breed puppies have faster metabolisms and smaller stomachs. They can become hypoglycaemic (low blood sugar) if they go too long between meals. Small breed puppy foods are:
- Higher in calorie density
- Formulated for more frequent feeding
- Offered in smaller kibble sizes
How Long Should You Feed Puppy Food?
Transitioning to adult food at the right time is just as important as choosing the right puppy food.
General Guidelines by Breed Size
| Breed Size | Expected Adult Weight | Switch to Adult Food |
|---|---|---|
| Toy/Small breeds | Under 10 kg | Around 9–12 months |
| Medium breeds | 10–25 kg | Around 12 months |
| Large breeds | 25–45 kg | Around 18 months |
| Giant breeds | Over 45 kg | 18–24 months |
Large and giant breeds take significantly longer to reach skeletal and physical maturity. Switching them to adult food too early — before growth plates have closed — can create nutritional gaps at a critical development stage.
Your vet is the best person to advise on timing for your specific dog, particularly if they're a less common breed or have any health considerations.
How to Transition
Never switch foods abruptly — this is a reliable way to cause digestive upset. A gradual transition over 7–10 days works well:
- Days 1–3: 75% old food, 25% new food
- Days 4–6: 50/50
- Days 7–9: 25% old food, 75% new food
- Day 10 onwards: 100% new food
If your puppy shows signs of digestive upset (loose stools, vomiting, loss of appetite), slow the transition down further.
Other Things Worth Knowing
Feeding frequency: Puppies need more frequent meals than adult dogs because their stomachs are small and blood sugar regulation is immature. A general guide:
- 8–12 weeks: 4 meals per day
- 3–6 months: 3 meals per day
- 6 months onwards: 2 meals per day
Avoid these foods entirely: Chocolate, grapes and raisins, onion, garlic, macadamia nuts, xylitol (found in some peanut butters and sugar-free products), cooked bones, avocado, and alcohol. These are all toxic to dogs.
Treats count: If you're using treats heavily in training (as you should be with a puppy), factor those calories into the daily total. Puppy-specific treats or small pieces of plain cooked chicken or cheese are better choices than high-calorie commercial treats during the training-heavy early months.
Weight check: You should be able to feel your puppy's ribs easily but not see them prominently. If you can't feel the ribs at all, they may be gaining too fast. If the ribs are very visible, they may need more food. Your vet can assess body condition score at each check-up.
The Bottom Line
Choosing the right puppy food doesn't need to be complicated, but it does require a bit of attention. Look for "complete and balanced" labelling that meets AAFCO Growth or All Life Stages standards, choose a product appropriate for your pup's breed size, and make sure real animal protein is leading the ingredient list. Wet or dry is a matter of preference and practicality — both can work well.
And when the time comes to switch to adult food, don't rush it. Your puppy will eat puppy food for a relatively short window of their life, but the nutritional foundations you build during that time will carry them for years to come.