PRO PLAN Veterinary Diet OM St/Ox Obesity Management Dry Cat Food - 5kg


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£43.99 (£8.80/Kg)


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PURINA® PRO PLAN® VETERINARY DIETS OM St/Ox Obesity Management is a complete veterinary diet for weight loss in obese cats.

PURINA® PRO PLAN® VETERINARY DIETS OM St/Ox Obesity Management is low in fat and calories whilst being high in protein to encourage steady and effective weight loss while maintaining muscle mass. Made with high levels of natural fibre and protein to help your cat feel full and satisfied. Once ideal weight is reached, your cat can continue to be fed.


  • High protein level to help promote loss of body fat while maintaining muscle mass
  • Urinary Security - To help minimise the occurrence of struvite and oxalate urinary stone, more common in overweight cats
  • Low calorie diet to help with weight loss
  • Complete dietetic pet food for adult cats for the reduction of excessive body weight, formulated with energy density.

Note that PURINA® PRO PLAN® VETERINARY DIETS OM St/Ox Obesity Management is not recommended for cats that need a higher calorie intake such as pregnant queens or growing kittens.

Contents: 5kg


Fresh drinking water should always be available.

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Great Food! My Casper really loves it! Mary on 8 February 2024

This is a great dry food, Casper really loves it! which is a big relief as he had been poorly and needed to lose weight and I can honestly say he has lost weight which is great without compromising his enjoyment.

Great Quality Anne on 5 April 2017

Fat cat loves this.Too soon to tell if effective though.

Feeding Guide

Weight of Cat (KG)   Daily amout for WEIGHT LOSS (g)   Daily amount for WEIGHT MAINTENANCE (g)
4   34   45
6   55   70
8   75   95
10   95   155
>10   Add 10g/kg   Add 15g/kg

Until target body weight is achieved and after if required to maintain target bodyweight.

A transition period when starting the diet is advised and for an efficient weight loss or ideal weight maintenance, the recommended daily energy intake should not be exceeded.

It is recommended that a veterinarian's opinion be sought before use or before extending the period of use.

Also available in wet formula.



Wheat Gluten,Corn Protein Meal, Soya Meal, Dried Poultry Protein, Wheat Flour, Pea Hulls, Cellulose, Digest, Minerals, Soya Protein Powder, Pork Fat, Fish Oil, Yeast, Xylose


  Analytical constituents:
Protein: 48.0%
Fat content: 8.0%
Crude ash: 8.0%
Crude fibre: 7.5%
Energy value: 3.4kcal/g
Nutritional additives: IU/kg:
Vit. A: 36 000
Vit D3: 1200
Vit. E: 650
Taurine: 1 000
Iron(II)sulphate monohydrate: (Fe: 125)
Calcium iodate anhydrous: (I: 1.9)
Copper(II)sulphate pentahydrate: (Cu: 13)
Manganous sulphate monohydrate: (Mn: 46)
Zinc sulphate monohydrate: (Zn: 115)
Sodium selenite: (Se: 0.13)


This and similar products can be found in: Cat Food  |  Cat Food: All  |  Cat Health  |  Cat Weight Management  |  Pet Health  |  Pet Health: All  |  Pro Plan Veterinary  |  Purina Pro Plan Veterinary Cat