Brit GF Veterinary Diet Struvite Cat, 2 kg is a grain-free dietetic food from the Czech brand Brit for cats with struvite urolithiasis. It helps dissolve struvite stones and reduces the risk of them returning. To do this, it's very low in magnesium (0.06%), contains urine acidifiers — L-methionine and calcium sulphate — and extra salt makes the cat drink and urinate more. Dissolution takes 5–12 weeks, and for prevention the food is fed for up to 6 months. Energy: 380 kcal per 100 g.
What it is and who makes it
Brit is a Czech brand with a Veterinary Diet range for cats and dogs. Struvite is designed for cats with confirmed struvite urolithiasis, urinary tract disease and bacterial bladder infections. It's a therapeutic food prescribed and monitored by a vet.
Ingredients and analysis
Dehydrated chicken (20%), yellow peas (16%), pea protein, chicken fat (10%), hydrolysed chicken protein (10%), buckwheat, green peas (6%), sodium chloride (3%), apple pomace, potato protein, salmon oil (2%), hydrolysed chicken liver, brewer's yeast, calcium sulphate (acidifier), brown seaweed, sea buckthorn, cranberry, L-tryptophan and the probiotic Enterococcus faecium.
| Parameter | Value |
|---|---|
| Protein | 34% |
| Fat | 16% |
| Magnesium | 0.06% |
| Sodium | 1.3% |
| L-methionine | 1% |
| Calcium / phosphorus | 0.8% / 0.7% |
| Omega-3 | 0.6% |
| Energy | 380 kcal per 100 g |
How the diet works
- Low magnesium. Magnesium is the main building block of struvite.
- Acidic urine. L-methionine and calcium sulphate acidify the urine, where struvite dissolves.
- More drinking. Salt increases thirst, so urine is less concentrated.
- Calm. L-tryptophan helps reduce the stress that triggers cystitis in cats.
Pros
- Dissolves struvite. A 5–12 week course, avoiding surgery in suitable cases.
- Prevents recurrence. Up to 6 months after dissolution.
- Grain-free. Peas and buckwheat instead of wheat and corn.
- Omega-3 and antioxidants. Fish oil, sea buckthorn and vitamins A, C and E.
- Probiotic. Enterococcus faecium for the gut.
Cons and what to keep in mind
- Struvite only. Stone type is determined by urinalysis and ultrasound; oxalates need a different approach.
- High salt. With heart or kidney disease or hypertension — only at a vet's discretion.
- Strict. No other food or treats during the course — they cancel out the effect.
- Monitoring needed. Urinalysis and ultrasound are repeated to confirm the stones have dissolved.
When to see a vet urgently
If your cat keeps going to the litter box and passes only drops, has blood in the urine, cries in the box or can't urinate at all, it's an emergency. Male cats have a narrow urethra, and a blockage can cause kidney failure within a day. Food doesn't replace emergency care: the vet first restores urine flow, then prescribes the diet. More in urinary stones in cats.
Water is half the treatment
The more a cat drinks, the more dilute the urine and the lower the chance of crystals forming. Place several bowls in different rooms, use a fountain and change water daily. Many cats prefer wide bowls where their whiskers don't touch the sides. More in how much water a cat should drink. After the therapeutic course, a vet may suggest a regular food with urinary support, such as Brit Care Sterilised Sensitive.
Who it suits
Adult cats with confirmed struvite urolithiasis, crystalluria and bacterial cystitis — as prescribed by a vet. Other foods are in dry cat food.
Verdict
Brit Veterinary Diet Struvite Cat is a grain-free therapeutic diet that dissolves struvite and lowers the risk of recurrence through low magnesium, urine acidification and increased drinking. It's started only after a urine test, and the course is followed under a vet's supervision.
Frequently Asked Questions
How long should Brit VD Struvite be fed?
5–12 weeks to dissolve struvite, up to 6 months for prevention.
Can it be used for oxalate stones?
It's designed for struvite; with oxalate stones the vet chooses the approach.
Can it be mixed with regular food?
No, during the course the cat should eat only the therapeutic food.
Why is it high in salt?
Salt increases thirst: the cat drinks more, the urine is diluted and crystals form less easily.
Is it suitable for male cats?
Yes, for both female and male cats with confirmed struvite stones.
Can the food be softened?
Yes, with warm water — which also adds fluid.



