Bladder stones in dogs can sound scary, and if your dog has just been diagnosed with them, you are probably wondering what on earth you should feed them now. Where does that leave you with treats, is this permanent, do I need to change my dog’s food?

The good news is that diet can play a really important role in supporting urinary health. The slightly trickier news is that not all bladder stones are the same. This means the “best” food or treat for one dog may not be right for another.

Some stones can be helped with a special veterinary diet. Others cannot be dissolved by food at all, but diet may still help reduce the risk of them coming back. That is why the first step is always finding out what type of stone your dog has.

In this blog, we will look at what bladder stones are, how diet can help, what foods may need to be avoided, and where gentle, plant-based Soopa treats may fit in for some dogs.

What are bladder stones in dogs?

Bladder stones, also called uroliths, are hard mineral formations that develop in the urinary tract. They can form in the bladder, kidneys, urethra or elsewhere in the urinary system, although bladder stones are one of the more common concerns dog owners hear about.

They may be tiny, like grit, or larger stones that cause severe irritation, discomfort and difficulty passing urine.

Common signs of bladder stones in dogs can include:

• Straining to urinate
• Passing small amounts of urine frequently
• Blood in the urine
• Accidents in the house
• Licking around the urinary area
• Pain or discomfort
• Recurrent urinary tract infections
• Crying when trying to wee
• Inability to urinate, which is an emergency

If your dog cannot pass urine, this needs urgent veterinary care. A blockage can become life-threatening very quickly.

Why the type of bladder stone matters

This is the part many owners do not realise: bladder stones are not all treated the same way.

The most 4 common types in dogs include:

• Struvite stones
• Calcium oxalate stones
• Urate stones
• Cystine stones

Each type has different dietary considerations. For example, struvite stones are often linked with urinary tract infections and may sometimes be dissolved using a veterinary urinary diet alongside appropriate treatment from your vet. Calcium oxalate stones, however, cannot be dissolved by diet and often need to be removed, with diet then used to reduce recurrence risk.

This is why guessing at home is not a good idea. A dog with one type of stone may need urine dilution and controlled minerals. Another may need a lower-purine diet. Another may need careful management of calcium, sodium, protein or urine pH.

Struvite vs cystine stones: what is the difference?

Two bladder stones that can sometimes cause confusion are struvite stones and cystine stones. They are both urinary stones, but they form for very different reasons.

Struvite stones are often linked with urinary tract infections. When certain bacteria are present, they can change the urine environment and make it easier for struvite crystals and stones to form. This is why dogs with struvite stones often need veterinary treatment for infection as well as a carefully chosen urinary diet. Usually they are more common in female dogs as they are more prone to UTIs then male dogs. In some cases, struvite stones may be dissolved with a prescription diet, but this should always be done under veterinary guidance.

Cystine stones are different. They are usually linked to how the dog’s body handles certain amino acids, especially cystine. Some dogs have an inherited issue that means cystine is lost into the urine, where it can then form stones. Cystine stones are more common in some breeds and are often seen more in male dogs.

The diet approach can also be different. A dog with struvite stones may need a diet that helps dissolve the stones and manage urine pH while the infection is treated. A dog with cystine stones may need a diet that is carefully controlled in protein and certain amino acids, alongside other veterinary management.

So, while both are “bladder stones”, they are not the same problem. This is why stone analysis is so important. Without knowing the type of stone, it is very easy to choose the wrong food, treat or supplement.

How diet can help dogs with bladder stones

Diet may help in several ways, depending on the stone type.

1. Encouraging more dilute urine

One of the most helpful urinary health goals is often to encourage your dog to produce more dilute urine. Concentrated urine can allow minerals to sit in the bladder for longer, increasing the chance of crystals or stones forming.

Ways to support better hydration include:

• Feeding wet food if suitable or even a combination diet
• Adding water to meals ( a small amount can really help, not too much)
• Offering fresh water in several places
• Using a pet water fountain
• Feeding moisture-rich toppers approved by your vet
• Encouraging regular toilet breaks

For many stone-prone dogs, water is not just an afterthought. It is a key part of management.

2. Controlling certain minerals

Some bladder stones form when specific minerals are present in high amounts in the urine. Depending on the stone type, your vet may recommend controlling minerals such as magnesium, phosphorus, calcium or oxalate.

This does not mean minerals are “bad”. Dogs need minerals. The aim is balance.

A complete and balanced veterinary urinary diet is often carefully formulated to manage mineral levels while still meeting your dog’s nutritional needs. This is why homemade “urinary diets” should only be used with professional formulation.

3. Managing urine pH

Urine pH tells us whether urine is more acidic or more alkaline. Some stone types are more likely to form in certain pH ranges.

For example, struvite stones are often associated with alkaline urine, especially when infection is involved. Some urinary diets are designed to help create a more acidic urine environment that makes struvite stones less likely to form.

However, changing urine pH without knowing the stone type can be risky. Making urine more acidic may help in one situation but be unhelpful in another. This is why cranberry supplements, apple cider vinegar and random “urinary health” products should never be used as a substitute for veterinary advice.

4. Supporting healthy body weight

Overweight dogs may have a higher risk of several health problems, including urinary issues. Extra weight can also make dogs less active, which may mean fewer toilet trips and more time for urine to sit in the bladder.

Keeping your dog lean can support overall health and may be part of a wider bladder stone prevention plan.

If your dog needs to lose weight, choose lower-calorie treats, measure food properly and avoid lots of hidden extras. Soopa Healthy Bites can be a useful option for some dogs because they are small, plant-based treats that make portion control easier during training or reward time.

What can dogs with bladder stones eat?

The best food depends on the stone type, but here are some general principles.

Veterinary urinary diets

For many dogs, especially those with struvite or calcium oxalate concerns, your vet may recommend a prescription urinary diet. These diets are designed to control mineral levels, support urine dilution and influence urine pH in a targeted way.

They may come as wet food, dry food or both. Wet food can be especially useful because it naturally increases water intake.

If your dog is prescribed a urinary diet, it is important not to dilute its effect by adding lots of extras. Treats, chews, toppers and table scraps can all change the overall mineral balance. Your dog may not need this diet long term but make sure you only remove the diet under veterinary or nutritionist supervision.

Wet food or water-added meals

Moisture is often a big part of urinary support. If your dog eats dry food, ask your vet whether you can soak it or add warm water. Some dogs enjoy their kibble as a gravy-style meal, which can be a simple way to increase fluid intake.

You can also try:

• Adding water to each meal ( 10ml for every 100g of kibble)
• Offering ice cubes made from dog-safe, vet-approved liquids
• Using a water fountain
• Encouraging calm, regular toilet breaks

Simple, suitable treats

Treats should usually make up no more than 10% of your dog’s daily calories. For dogs with bladder stones, you may need to be even more careful, especially if they are on a prescription urinary diet.

Soopa treats may suit some dogs as occasional rewards because they are plant-based, low in fat and made with simple ingredients. The Soopa Cranberry & Sweet Potato Dental Sticks may be especially appealing to owners looking for a gentle treat option, as they include cranberry and sweet potato and are designed as a natural, vegan dental chew.

However, if your dog is on a strict urinary prescription diet, always check with your vet before adding any treat, including natural ones. “Natural” does not automatically mean suitable for every stone type.

What foods should dogs with bladder stones avoid?

This depends on the type of stone, but there are some common foods and feeding habits to be cautious with.

High-salt human foods

Salty foods like crisps, processed meats, sausages, bacon, ham and cheese are not ideal treats for dogs at the best of times. While some veterinary urinary diets use controlled sodium levels to encourage thirst, this is very different from feeding random salty human foods.

Lots of meaty extras

Many owners add chicken, beef, liver, fish, eggs or other protein-rich extras to meals because they want to make food more exciting. But for dogs with bladder stones, this can sometimes interfere with the diet plan.

Some stone types require careful control of protein, phosphorus or purines.

This does not mean protein is bad. It means the overall diet needs to be carefully matched to your dog’s diagnosis.

High-oxalate foods for calcium oxalate stone formers

For dogs prone to calcium oxalate stones, vets may advise avoiding high-oxalate foods. These can include foods such as spinach, beet greens, Swiss chard, rhubarb and certain nuts or seeds.

You do not need to panic about every tiny ingredient, but you should avoid adding high-oxalate foods regularly unless your vet or nutritionist has confirmed they are suitable.

Random supplements

Urinary supplements are everywhere, but they are not always harmless. Cranberry, vitamin C, urine acidifiers, alkalinisers, mineral supplements and herbal products can all affect urine chemistry.

For some dogs, that may be useful. For others, it may be completely the wrong direction.

Do not add urinary supplements unless your vet knows the stone type and agrees they are appropriate. I would always advise with any diagnosed urinary issue to remove anything out of your dogs diet apart from their food

Are cranberries good for dogs with bladder stones?

Cranberry is often talked about for urinary health, but it is important to keep expectations realistic.

Cranberry does not dissolve bladder stones. It is not a replacement for antibiotics if your dog has a urinary tract infection. It is not a substitute for a prescription urinary diet.

That said, cranberry can be a lovely ingredient in a treat for many dogs, and Soopa’s Cranberry & Sweet Potato range can be a tasty option for dogs who are allowed treats as part of their wider diet plan.

The key phrase is: as part of the plan.

If your dog has bladder stones, especially if they are on a strict veterinary diet, ask your vet whether cranberry-containing treats are suitable.

Can Dogs on a Bladder Stone Diet Have Treats?

One of the most common questions I get asked is whether dogs on a veterinary urinary diet can still have treats.

The honest answer is: sometimes, but we need to be careful.

Veterinary urinary diets are not just “normal dog food with a urinary label on the bag.” They are designed to influence things like urine concentration, urine pH, mineral levels and, in some cases, stone dissolution. This is why adding lots of extras, toppers, chews or treats can sometimes interfere with the purpose of the diet.

That does not mean every single treat is automatically dangerous, but it does mean we need to look at the whole picture.

What About Treats Containing Chickpea Flour?

Chickpea flour often raises questions because it is a legume-based ingredient and may be considered more alkaline-forming than some other ingredients.

In reality, if a dog is having a small treat a few times a week, chickpea flour is unlikely to single-handedly change the dog’s urine pH in a meaningful way — especially if the vast majority of their calories are still coming from the prescribed urinary diet.

The bigger issue is not necessarily the chickpea flour on its own. The bigger issue is whether the treat, when added to everything else the dog eats, starts to dilute the effect of the veterinary diet.

For dogs on a urinary diet, I usually recommend keeping treats very limited — ideally well under 10% of daily calories, and often less if the dog is prone to recurrent stones.

When I Would Be More Cautious

I would be more cautious with treats containing ingredients like chickpea flour if:

• the dog is currently trying to dissolve struvite stones
• there is an active urinary tract infection
• the dog is having urinary symptoms or a flare-up
• the dog has recurring calcium oxalate stones
• the vet has advised “prescription diet only”
• the dog’s stone type is unknown
• the treat does not provide useful mineral information

For urinary dogs, missing information can be just as important as what is listed on the label. Ideally, I would want to know more than just protein, fat, fibre and moisture. For bladder stone dogs, things like calcium, phosphorus, magnesium, sodium, chloride, purines and overall urinary effect may matter depending on the stone type.

So, Are These Treats Okay?

If the dog is stable, on a veterinary urinary diet for maintenance, and only having a small amount occasionally, I would not panic about chickpea flour in a treat.

However, I would not use these freely, and I would avoid them during active stone dissolution, active urinary infections, urinary flare-ups or strict veterinary diet trials.

The safest option for many bladder stone dogs is to use part of their veterinary diet as treats, or choose vet-approved treats that are suitable for their specific stone type.

My Practical Rule

For dogs with a history of bladder stones, treats should be:

small, occasional, measured and approved where possible.

A few treats a week are unlikely to be the main problem for many stable dogs, but daily extras, multiple chews, toppers and “just a little bit” from everyone in the household can quickly add up.

With bladder stones, consistency matters. The veterinary diet needs to do the heavy lifting, and treats should not get in the way of that.

When to call the vet urgently

Contact your vet straight away if your dog:

• Cannot urinate
• Is straining but nothing comes out
• Seems painful or distressed
• Has blood in the urine
• Is vomiting or lethargic
• Keeps trying to wee repeatedly
• Has a swollen or painful belly

A urinary blockage is an emergency and should never be managed at home.

Final thoughts

Diet can make a big difference for dogs with bladder stones, but the right diet depends on the type of stone. Some dogs need a prescription urinary diet. Some need increased moisture. Some need careful mineral control. Some need lower purine foods. Some need surgery or another veterinary procedure before diet can help prevent recurrence.

The best thing you can do is work with your vet, find out the stone type, follow the recommended diet plan and be thoughtful with treats.

And yes, for some dogs, Soopa treats may still have a place. Plant-based, low-fat options like Soopa Cranberry & Sweet Potato Dental Sticks or Soopa Healthy Bites can be a gentler alternative to salty, meaty or heavily processed snacks, as long as your vet confirms they suit your dog’s urinary plan.

Because when it comes to bladder stones, it is not about banning all joy from the treat cupboard. It is about choosing treats that fit your dog’s health needs, one waggy-tailed snack at a time.

References

MSD Veterinary Manual — Urolithiasis in Dogs
https://www.msdvetmanual.com/urinary-system/urolithiasis-in-small-animals/urolithiasis-in-dogs

ACVIM Consensus Recommendations on the Treatment and Prevention of Uroliths in Dogs and Cats
https://pmc.ncbi.nlm.nih.gov/articles/PMC5032870/

VCA Animal Hospitals — Nutritional Concerns for Dogs with Bladder Stones
https://vcahospitals.com/know-your-pet/nutritional-concerns-for-dogs-with-bladder-stones

 VCA Animal Hospitals — Bladder Stones in Dogs
https://vcahospitals.com/know-your-pet/bladder-stones-in-dogs

Cornell Richard P. Riney Canine Health Center — Struvite Bladder Stones in Dogs
https://www.vet.cornell.edu/departments-centers-and-institutes/riney-canine-health-center/canine-health-topics/struvite-bladder-stones-dogs