SPECIFIC (Dechra) FCD-Light Crystal Management Cat Food

SPECIFIC (Dechra) FCD-Light Crystal Management Cat Food

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  • 400g £5.65
  • 2kg Bag £22.99

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£5.65 to £22.99


SPECIFIC™ FCD-L is a dry food to help prevent the recurrence of struvite and calcium oxalate stones. With moderate energy levels this diet is ideal for cats needing to control weight. A moderate sodium content makes it suitable for long term use.

For adult cats with struvite or calcium oxalate stones.

Why choose Crystal Management Light?

  • It creates a more acidic urine, helping to dissolve struvite stones.

  • It has a reduced mineral content, particularly magnesium and phosphorus, to help prevent crystals re-forming.
  • It has a moderate energy content to help maintain ideal bodyweight.
  • Moderate salt contenmaking it safe for long-term use.
  • It contains Omega-3 fatty acids from fish oil (EPA & DHA) for healthy coat skin and joint.


  • Fish meal, maize protein, maize, wheat, rice, potato protein, maize starch, cellulose powder, pork fat, animal protein hydrolysate, vitamins and trace elements (including chelated trace elements), minerals (including tripotassium citrate), fish oil, methionine, egg powder, ammonium chloride, psyllium husk, taurine, beet pulp, chondroitin sulphate, Yucca powder. With natural antioxidants (tocopherols, rosemary extract and vitamin C). Contains no added artificial colours or flavourings
Nutrient Contents per 100 g Contents per MJ
Metabolisable Energy kJ 1486 -
Metabolisable Energy kcal 355 -
Protein g (crude) 32.0 21.5
Fat g (crude) 9.5 6.4
Carbohydrate g (NFE) 40.2 27.0
Fibre g (crude) 5.1 3.4
Calcium g 0.67 0.45
Phosphorus g 0.61 .041
Magnesium g 0.07 0.047
Sodium g 0.27 0.18
Omega-3 fatty acids g 0.85 0.57
Ratio n-3:n-6 1:2 1:2
Water g 7.2 -

Feeding guide in grams per day

Weight in kg Thin Normal Overweight
1 30 20 15
2 45 35 25
3 60 45 35
4 70 55 45
5 85 60 50
6 95 70 55
7 105 80 60
8 115 85 70
9 125 90 75
10 130 100 80
11 140 105 85
12 150 110 90

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All prices include VAT where applicable.

Reviews (22)

Summary of Reviews for SPECIFIC (Dechra) FCD-Light Crystal Management Cat Food

Overall 4
Value For Money
Nutritional Value
Pet's Opinion
22 out of 22 (100%) customers would recommend this product.
5 stars (10 reviews)
4 stars (12 reviews)
3 stars (0 reviews)
2 stars (0 reviews)
1 stars (0 reviews)

Only verified purchasers of this product can leave a review.

55 Very good.
Verified Purchase

By on 13 June 2024

My two Bengals love this kibble and will ignore other substitutes. The boy who gets crystals in his pee has improved since switching to this.

Customer recommends this product

45 Light crystal management cat biscuits
Verified Purchase

By on 12 April 2023

Excellent dry cat food for pets suffering with urine problems... We now use crystal light as we found out cat putting too much weight on so the light management of this product is better if your cat has weight issues. My cat Pippin loves this product and would not use anything else.
Thankyou 🐱

Customer recommends this product

55 Specific crystal management dry cat food
Verified Purchase

By on 30 March 2023

Vet recommended this food . Cat loves it . Very good quality.

Customer recommends this product

55 Got to shop around until VioVet is found
Verified Purchase

By on 9 November 2022

We've had to use crystal management for a number of years. Wouldn't have our eldest cat without it after I believe idiopathic urethritis. Does the job and much cheaper than either of our vets. Great stuff

Customer recommends this product

55 So quick
Verified Purchase

By on 16 October 2022

My cat has to have this one. He loves it and I couldn't get it from my vets.. Thank you

Customer recommends this product

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Q & A

Below are some recent questions we've received regarding SPECIFIC (Dechra) FCD-Light Crystal Management Cat Food, including answers from our team.

24 May 2022 at 10:23am

Using the food year-year

Emily P.

  • VioVet customer since 2021
  • From: Devon, United Kingdom

Can this food be used as a cat's normal, year-round food or should it just be used temporarily to reduce crystals?

  • VioVet Staff

This is a complete die that can be used in the long term but only alongside veterinary advice. Whether it is appropriate for long term use is best determined by your local vet.

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