When it comes to natural support for the urinary tract, one name comes up sooner or later: cranberries. The small red berries that many of us enjoy on our plates, especially in the fall, can also play a valuable role in the bowls of dogs and cats. But what exactly does that mean? We take a look at their effects, uses, and what to look out for.

What are cranberries anyway?

Cranberries belong to the heather family and grow primarily in North America. They contain many secondary plant substances, especially proanthocyanidins (PACs) – and these are said to have a special effect.

The superpower of PACs – goodbye to urinary tract infections?

The most well-known property of cranberries is their ability to prevent bacteria from adhering to the bladder lining – especially Escherichia coli, a common cause of urinary tract infections. This means they can play a supportive role in recurring bladder infections, problems with ureter or kidney function, and generally in strengthening urinary tract health.

Important: Cranberries do not treat acute infections, but they can help prevent infections – ideally in combination with an overall healthy diet.

How do I give cranberries to my pet?

Dried cranberry powder is best for dogs and cats – no added sugar, no preservatives, and of course, food-grade. If you like, you can mix it into their food as a course of treatment or regularly when acutely needed. For small cats, a pinch is often enough; for larger dogs, a little more is fine. However, as with all supplements, individual dosage or advice is advisable.

Be careful with ready-made snacks or juice:

Many commercially available products are sugary or contain additives that are not good for either dogs or cats. Therefore, it is better to use pure products that are specifically suitable for animals.

Is it compatible – also for cats?

The good news: Cranberries are also safe for cats in small amounts, provided they are pure and sugar-free. A cautious supplement can be particularly beneficial for cats prone to struvite crystals or cystitis.

But be careful: Not every cat likes the slightly sour taste, and some are sensitive. If unsure, it's better to test a small dose first or consult a specialist.

When is it worth using?

Cranberries can be supportive for:

• Animals with chronic or recurring cystitis
• Older animals with reduced kidney function
• Female dogs after their heat cycle
• Spayed animals prone to urinary tract problems

Our conclusion

Cranberries are not a miracle cure—but they are a natural and gentle aid in everyday life. Whether as a preventative measure or as a cure for known urinary tract problems: If you pay attention to quality and find the right amount, you can do your pet good.

And as always: In case of doubt, it is better to involve the veterinarian or animal health practitioner – especially in the case of existing medical conditions or medication.