Water, pH and why some raw is better than none

August 4, 2026the ardam team
Dog bowl split half raw K9 Raw and half kibble beside a water glass showing the moisture difference between raw and dry dog food

Most dog food conversations argue about protein. Meat first, meat quality, meat percentage. All fair.

But there's a nutrient that changes the shape of your dog's day more than protein does, and it barely gets a mention on the bag.

Water.

Not the water in the bowl next to the food, but the water inside the food. Once you see the gap between what's in a kibble biscuit and what's in a bowl of raw or gently cooked food, a lot of everyday dog stuff starts to make more sense. Why some dogs drink like camels. Why urine smells strong. Why the poop suddenly looks different when you swap food.

This is a plain-English look at moisture, urine pH, and what actually happens when you add some raw to your dog's routine, even if you're not ready to swap the whole bowl.

The one nutrient most dog food conversations skip

Every dog food label in Australia lists a "Guaranteed Analysis": protein, fat, fibre, and moisture. Moisture is the plain water content of the food, expressed as a percentage.

It's the least glamorous line on the label. It also tells you the most about what your dog's body is actually doing between meals.

Here's the honest version of the numbers, drawn from peer-reviewed studies and the standards used by the global pet food industry.

How much water is actually in your dog's food?

Kibble

Around 6 to 12% moisture, usually about 10%. That's baked in, literally. Kibble is extruded at high heat and dried down so it stores at room temperature for months without spoiling. That's a real convenience, and it's why kibble exists.

But it means every kilo of kibble is roughly 100 grams of water and 900 grams of dry matter. A dog on a kibble-only diet is essentially eating desert rations and topping up from the water bowl. A peer-reviewed study published in Frontiers in Veterinary Science measured a common dry food at 6.1% moisture on independent lab analysis.

Lightly cooked or gently roasted

Typically 65 to 72% moisture. Lightly cooked foods (sometimes called "gently cooked" or "fresh cooked") are sealed and cooked at low temperatures: high enough to make the food shelf-safe when refrigerated, low enough that most of the water stays in the food. The same Frontiers study tested a leading lightly-cooked brand at 71.1% moisture.

Any cooking drives some water off. But lightly cooked food is designed to keep it in, and the result is close to raw on hydration.

Raw

Typically 65 to 75% moisture, sometimes higher. Raw food isn't dried or cooked, so the water that was in the meat, organs and veg stays in the bowl. This matches industry definitions of "wet" pet food (≥65% moisture) and the peer-reviewed comparison studies of raw vs kibble diets in dogs.

For ardam's K9 Raw range, moisture sits inside the raw range shown on each product's Guaranteed Analysis panel. See Chicken Essentials, Beef Essentials, or the complete K9 Raw collection.

The picture, side by side

Food format Typical moisture What that means
Kibble 6 to 12% Dry pantry food. Water intake depends almost entirely on the water bowl.
Lightly cooked 65 to 72% Wet food category. Hydration close to raw.
Raw (K9 Raw) 65 to 75% Wet food category. No cook step, so water stays in the bowl.

The interesting line here isn't raw vs lightly cooked. Those two sit in the same league. The interesting line is anything fresh vs kibble. That's a 6x to 12x difference in the water your dog is eating with dinner.

Why moisture matters more than it sounds

Water in food isn't a nice-to-have. It's how a dog gets a big chunk of their daily fluids in a way their body is used to processing.

In a controlled crossover study, dogs eating a high-moisture fresh food consumed significantly more total water per day than dogs on dry food, even though the kibble-fed dogs drank more from the bowl. Food-water counts. Bowl-water only partly makes up the gap.

That matters most for:

  • Older dogs, whose thirst signals blunt with age.
  • Dogs who "don't drink much", a genuine phrase we hear weekly at ardam.
  • Working and active dogs in an Australian summer.
  • Dogs with a history of urinary issues (talk to your vet, more on that below).

More water eaten with meals tends to mean more dilute urine and a higher total daily fluid turnover. That's not a promise your dog will never have a health issue. It's just what water does.

Your dog's urine pH shifts with what's in the bowl

This is one of those things that surprises most owners the first time they hear it. Diet changes your dog's urine chemistry, measurably.

Peer-reviewed veterinary research has shown that diet does influence urine pH in healthy dogs (Gleaton, Bartges & Laflamme, Veterinary Therapeutics). Most healthy dogs produce urine on the mildly acidic side of neutral, and the specific number moves with the ingredients: protein sources, mineral content, and moisture all play a role.

The typical direction of travel with raw and other high-moisture, higher-protein foods is toward a mildly more acidic urine pH. One Frontiers study reported a 24-hour mean of around 6.5 on a fresh food. The kibble numbers in the same peer-reviewed literature tend to be somewhat higher (more alkaline), especially in plant-heavy formulations.

What this doesn't mean: urine pH is one number in a much bigger picture. There's no "target pH" for a healthy dog. What's right for one dog can be wrong for another, especially dogs with a history of urinary crystals, stones, or kidney concerns.

What it does mean: if you change your dog's food and something about their urine changes with it (smell, frequency, colour), you're not imagining it. That's diet doing what diet does. If anything looks off or the change is dramatic, book a vet visit. That's not a raw-vs-kibble issue. That's a good-dog-owner issue.

Some raw is better than none: the honest version

Here's the message we say most often at ardam, and we say it deliberately: you do not have to switch your dog to 100% raw for raw to do something useful.

If a full swap doesn't fit your household (cost, freezer space, family logistics, a fussy dog), a partial raw setup still gives your dog most of the moisture and digestibility benefits at a fraction of the disruption.

Peer-reviewed work comparing extruded (kibble), lightly cooked, and raw diets found that dogs on the fresh formats (including raw) had greater nutrient digestibility than dogs on the extruded diet. More of what goes in is actually absorbed. Even added as part of the bowl, that changes things.

What partial raw actually looks like in a bowl

Any of these is a real, useful step:

  • Half kibble, half raw, in the same bowl or split morning and evening.
  • Kibble on weekdays, raw at the weekend, if that fits your budget rhythm.
  • A raw topper, a spoon of K9 Raw over dry food to lift moisture and add fresh protein.
  • Chomperz treats instead of highly-processed biscuits: chicken necks, sardines, kangaroo jerky and chicken breast strips are single-ingredient snacks, not manufactured shapes.
  • A K9 Raw Sample Pack to trial a few mixes without committing.

If you want to work out how much raw to add for your dog's weight and life stage, use the ardam raw food calculator. It handles dogs and cats, puppies and seniors, and outputs a daily gram amount you can use in any ratio you like.

Two rules of thumb:

  1. Introduce raw slowly. A dog's gut adapts. Start with a small share of the bowl and increase over a week or two. If you're doing a full transition, our step-by-step transition guide walks through it day by day.
  2. Don't mix raw and kibble in one meal if it upsets your dog's stomach. Some dogs handle it fine. Some prefer separate meals a few hours apart. Watch the dog, not the internet.

Raw isn't a replacement for your vet, but it changes how hard your dog's body has to work

Think about two humans, same age, same build, same activity level.

Person A eats meat and two veg. Balanced, whole-food meals, decent hydration.

Person B eats meat, no veg, and a greasy burger every day.

Person C eats no veg, no meat, only greasy burgers.

Who visits the doctor the most over ten years? Almost everyone answers the same way. Not because burgers are poison. Because the body wasn't designed to work that hard, that often, on food it isn't built to process efficiently.

Dogs are no different. When a dog eats a diet their body isn't built to process well (highly-processed food, dried down to 10% moisture, with ingredients they didn't evolve to digest) their body works harder. Harder to hydrate. Harder to break the food down. Harder to absorb what's useful and get rid of what isn't. That work adds up over years.

Feeding raw, or even adding some raw, puts food in front of your dog that their body recognises. High moisture. Real protein. Nutrients in a form their gut is built for. Peer-reviewed research shows dogs on fresh formats (raw and lightly cooked) absorb more of what they eat than dogs on extruded kibble: less waste in, less waste out, and less strain on the machine doing the digesting.

None of this means raw replaces the vet. Dogs need regular check-ups, dental checks, weight checks, parasite prevention, and vaccinations kept up to date, exactly like people need their GP. Diet is what you do every day. The vet is who catches what diet can't.

The goal isn't a dog who never sees a vet. The goal is a dog whose vet visits are for check-ups, not for problems their bowl was making harder.

Talk to a vet about your dog

For veterinary advice on your individual dog, we recommend Dr. Anna Huynh at Greystanes Veterinary Clinic (26 Carnation St, Greystanes NSW 2145, (02) 9609 1500) in Western Sydney. Wherever you are in Australia, keep your regular vet in the loop about diet changes, especially if your dog has any history of urinary, kidney, pancreatic, or digestive conditions.

Where to start with ardam

If this article has moved you from "raw is interesting" to "let's actually try it", the lowest-friction step is a Sample Pack:

Not ready for the bowl swap? Chomperz treats (chicken necks, sardines, kangaroo jerky and chicken breast strips) are a low-commitment way to start bringing more real, single-ingredient food into your dog's week.

FAQ

Is raw dog food really that much wetter than kibble?

Yes. Kibble typically sits at 6 to 12% moisture. Raw sits at 65 to 75%. That's a 6x to 12x difference in the water your dog is eating with dinner, backed by peer-reviewed comparison studies.

Does adding raw to kibble upset my dog's stomach?

Most dogs handle it well when it's introduced gradually. Some dogs prefer raw and kibble as separate meals a few hours apart. Start slow, watch your dog, and if in doubt, ask your vet.

Will raw food change my dog's urine pH?

Diet does influence urine pH in healthy dogs. That's established veterinary science. Most healthy dogs still produce urine in the mildly acidic range regardless of diet type. If your dog has a history of urinary issues, ask your vet before making a big diet change.

Is 100% raw the only way to see benefits?

No. Any consistent share of fresh, high-moisture food adds up. A daily raw topper or a partial swap gives your dog most of the hydration and digestibility upsides at a fraction of the disruption.

Do I still need to take my dog to the vet if they eat raw?

Yes. Diet doesn't replace vet care. Regular check-ups, dental checks, and preventive care matter regardless of what's in the bowl.

Where can I get started with ardam?

The easiest entry point is a K9 Raw Sample Pack at 50% off. Or use the raw food calculator to work out a daily amount for your dog.


Sources: Frontiers in Veterinary Science (2025) on fresh-food hydration in dogs; Journal of Animal Science (2018) on raw vs kibble digestibility; Purina Institute on wet pet food definitions; Gleaton, Bartges & Laflamme in Veterinary Therapeutics on diet and urine pH. Reviewed by the ardam team. For veterinary advice on your individual dog, contact Dr. Anna Huynh at Greystanes Veterinary Clinic.

For maximum natural moisture in the bowl, choose a complete raw mix or a frozen raw meal over dry food.

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