Hill's Science Plan Feline Mature Adult Sterilised Cat Chicken Dry Cat Food

Sterilised senior cats face a double challenge: the metabolic changes from sterilisation combined with the natural effects of ageing. Hill's Science Plan Mature Adult Sterilised Cat is uniquely formulated to address both, providing weight management cat food alongside senior-specific support in one complete food.

The recipe features a low fat content to help maintain a lean body condition, paired with high-quality protein from chicken and turkey meal to preserve muscle mass as your cat ages. Controlled mineral levels support urinary tract health, which remains a key concern for sterilised cats throughout their lives. The easily digestible ingredients are gentler on an older cat's system, ensuring efficient nutrient absorption.

This food bridges the gap between Hill's Sterilised Cat formula (for younger adults) and the standard Mature Adult range. It is the ideal choice for sterilised cats transitioning into their senior years, and comes in a convenient 3kg bag.

This recipe is now upgraded with ActivBiome+ Multi-Benefit Technology: a prebiotic blend of oat bran and fructo-oligosaccharides (0.6%) that supports healthy digestion, a strong immune system and vital organ health.

Senior Weight Management: A low fat level helps maintain a lean body condition in sterilised senior cats, who face both age-related and sterilisation-related weight gain risks.

Urinary Health Support: Controlled mineral levels help support urinary tract health, addressing the increased urinary risk that sterilised cats face throughout their lives.

High-Quality Protein: Chicken and turkey meal helps preserve lean muscle mass as your cat ages, keeping them strong and mobile.

Easy Digestion: Made with easily digestible ingredients formulated for a senior cat's digestive system, ensuring gentle, efficient nutrition.

Complete Senior Nutrition: Provides all the vitamins, minerals, and nutrients your sterilised senior cat needs for overall health and wellbeing.

Food Form: Dry Cat Food
Species: Cat
Life Stage: Senior
Brand: Hill's Science Plan
Primary Flavour: Chicken
Product Line: Science Plan
Sub-Range: Sterilised

Ingredients

Broken rice, maize, chicken and turkey meal (chicken 9%; total poultry 15%), wheat, pea protein, maize protein meal, minerals, animal fat, fish oil, digest, soybean oil, L-carnitine, oat bran, fructo-oligosaccharides, vitamins, taurine, trace elements and beta-carotene. With a natural antioxidant (mixed tocopherols). ActivBiome+ Multi Benefit prebiotic blend (0.6%): Oat bran, fructo-oligosaccharides.

Analytical Constituents

Protein 31.5% | Fat content 9.3% | Crude fibre 0.90% | Crude ash 5.6% | L-lysine 2.1% | Calcium 0.86% | Phosphorus 0.63% | Sodium 0.32% | Potassium 0.81% | Magnesium 0.07%

Vitamins (per kg)

Vitamin A 6,022IU | Vitamin D3 596IU | Vitamin E 550mg | Vitamin C 90mg | Beta-carotene 1.5mg | L-Carnitine 525mg

Source: Hill's Science Plan Canine and Feline Product Information, November 2025 (Product Code 604134). These are the as fed analytical constituents declared on the pack, not dry matter figures.

Average Nutrient Content (dry matter basis)

Energy 3529 kcal/kg (353 kcal/cup) | Protein 33.7% | Fat 9.7% | Carbohydrate/NFE 49.5% | Crude Fibre 1.1% | Crude Ash 6% | Calcium 0.88% | Phosphorus 0.62% | Potassium 0.86% | Sodium 0.33% | Magnesium 0.093% | Taurine 0.3% | Vitamin A 7652 IU/kg | Vitamin C 104 ppm | Vitamin D 673 IU/kg | Vitamin E 601 IU/kg | Omega-3 0.69% | Omega-6 2.43% | Beta-carotene 1.91 ppm | L-carnitine 553.3 ppm

Source: Hill's published 'Average Nutrient & Caloric Content' table for this recipe, expressed on a dry matter basis. These figures are not the as fed analytical constituents declared on the pack.

Additives

Nutritional additives: 3b103 (Iron) 45.4mg, 3b202 (Iodine) 0.7mg, 3b405 (Copper) 4.5mg, 3b502 (Manganese) 4.7mg, 3b603 (Zinc) 93.9mg, 3b801 (Selenium) 0.1mg; with natural antioxidant.

Daily Feeding Guide - Dry Only

Feed your sterilised mature adult cat based on their body weight. Amounts are for dry food only. Adjust portions to maintain an ideal body condition.

Weight of Cat - Amount Per Day

• 2kg body weight - 35g per day
• 3kg body weight - 50g per day
• 4kg body weight - 60g per day
• 5kg body weight - 75g per day
• 6kg+ body weight - 13g per kg of body weight

Always provide fresh, clean water. Transition gradually over 7 days when switching from another food.

What sizes are available?

Hill's Science Plan Mature Adult Sterilised Chicken dry cat food is available in a 3kg bag.

What age should I switch from Sterilised Cat to this formula?

Transition to the Mature Adult Sterilised Cat formula when your sterilised cat reaches 7 years of age. Make the change gradually over 7 days.

How is this different from the standard Mature Adult food?

This formula combines the senior nutrition of Mature Adult with the weight management and urinary support features of the Sterilised Cat range. It has a lower fat content and controlled minerals specifically for sterilised cats.

Can I mix this with wet food?

Yes. Mixing with wet food adds hydration, which is especially beneficial for older cats. Adjust the dry food portion to keep the total daily intake within the recommended amounts.

My sterilised senior cat is already overweight. Is this enough?

This food helps maintain a healthy weight, but if your cat needs to lose significant weight, consult your vet. They may recommend a more intensive weight management plan or Hill's Prescription Diet options.

Why choose Canine & Co for Hill's Science Plan?

We're an authorised South African retailer with fast delivery, genuine products, and expert advice for your senior cat's specific needs.

What is ActivBiome+ Multi-Benefit?

Hill's has upgraded its Science Plan lifestage range with ActivBiome+ Multi-Benefit, a blend of prebiotic fibres and antioxidants that supports healthy digestion, a strong immune system and vital organ health. It is included in this recipe at 0.6% (oat bran and fructo-oligosaccharides).