9.5/10 on Trustpilot with 48k+ reviews!

Hills Science Plan Adult Optimal Care Tuna Cat Food

Hills Science Plan Adult Optimal Care Tuna Cat Food

  • Dry » 400g Bag £3.49
  • Dry » 2kg Bag £16.99
  • Special Offer Dry » 5kg Bag £34.49
  • Special Offer Dry » 10kg Bag £59.99

Selection of 4 products from

£3.49 to £59.99


Science Plan Feline Adult Optimal Care with Tuna is a complete dry food for adult cats (aged 1 and 6). It has been developed to help to promote an ideal fitness level with lean proteins and enhanced Omega 3 fatty acids. Tuna is gentle on the stomach and supports a healthy digestion. It is also packed with natural nutrients and fish oil is known to support joints, skin and brain function. The food also has specifically adapted mineral levels to help to sustain healthy vital organs. It contains a clinically proven formula of antioxidants which will support your cat's immune system. It has been specially formulated with 50 nutrients for optimum health, vitality and happiness. The food only contains premium quality tuna and tastes delicious for any cat.

Feeding Guide

These amounts are a starting point only because animals' needs vary. Adjust the feeding amount to maintain optimal body weight.

Body Weight kg Dry grams
2 30 - 40
3 40 - 55
4 50 - 65
5 55 - 80
6 65 - 90
7 + 11 - 13 per kg

An 85g can is equal to 20g of the dry food and a 156g can to 40g.

Hills Science Plan Adult Tuna key benefits

Key Features Key Benefits
Energy density High Meets energy requirements without needing large meals.
Controlled Provide an ideal balance for good health.
Avoid excessive intake which may contribute to ill health.
Controlled Supports urinary tract health.
Target urinary pH Acid: pH 6.2 - 6.4 Supports urinary tract health.
Palatability High Increases acceptance.
Variety of Formulas 4 pouches, 6 canned, 4 dry Increases choice to encourage acceptance.
Superior Antioxidant Formula Added Neutralises free radicals and helps maintain a healthy immune system.
Dried beet pulp*
*only in Optimal CareTM
Added Natural source of soluble fibre - contributes to healthy digestion


Ingredients: Chicken: Chicken (39%) and turkey meal, wheat, maize, animal fat, maize gluten meal, brewers' rice, digest, minerals, dried beet pulp, fish oil, taurine, vitamins, trace elements and beta-carotene. With a natural antioxidant (mixed tocopherols).


Average Nutritional Contents

As Fed Dry Matter kcal/100g
Beta-carotene 1.5 mg/kg 1.6 mg/kg 0.04 mg
Calcium 0.8 % 0.85 % 194 mg
Carbohydrate(NFE) 36 % 38.1 % 8.7 g
Fat 20.7 % 21.9 % 5 g
Fibre(crude) 1.1 % 1.1 % 0.3 g
Magnesium 0.07 % 0.07 % 16 mg
Moisture 5.5 % - 1.3 g
Omega-3 fatty acids 0.4 % 0.42 % 96 mg
Omega-6 fatty acids 3.38 % 3.58 % 819 mg
Phosphorus 0.68 % 0.72 % 164 mg
Potassium 0.63 % 0.67 % 153 mg
Protein 31.9 % 33.8 % 7.7 g
Sodium 0.33 % 0.35 % 80 mg
Taurine 1980 mg/kg 2095 mg/kg 48 mg
Vitamin A 6780 IU/kg 7175 IU/kg 164 IU
Vitamin C 70 mg/kg 74 mg/kg 1.9 mg
Vitamin D 690 IU/kg 730 IU/kg 17 IU
Vitamin E 650 mg/kg 688 mg/kg 16 mg

Metabolisable Energy

As Fed Dry Matter
kcal/100g 413 437
kJ/100g 1729 1829
Target Urinary pH 6.2 - 6.4

Additional information

Science PlanTM Feline Adult is available in many taste varieties, both in the dry and the wet formulas

Recommended for

Adult cats, from 1 year old until 7 years old (Tender Chunks in Gravy are also appropriate for senior cats).

Not recommended for

  • Kittens
  • Pregnant or lactating queens. During pregnancy and lactation queens should be switched to Science Plan™ Kitten Healthy Development™

Need help or advice? Contact us:

  • Landline: 01582 842096
  • Mon - Fri: 8:30am - 5:00pm
  • Sat: 9:00am - 1:00pm (Collections only)
  • Email: [email protected]

All prices include VAT where applicable.

Delivery Information

How quickly do you deliver?

Under almost all products on our website is an Estimated dispatch time, check this for a delivery prediction specific to the item you are looking to purchase. These badges are updated live based on the stock levels we have and also those of our suppliers - so are usually very accurate, but cannot be guaranteed. In more general terms, we aim to dispatch all orders within 1 working day of receiving payment (and a prescription if required). If we cannot do so within 3 working days we will contact you by email.

What do you charge for delivery?

For UK delivery, we charge the following:

Order Total Weight Delivery
£0-£28.99 Under 2kg £2.99
2kg+ £4.99
£29-£38.99 Under 2kg Free
2kg+ £4.99
£39+ Under 2kg Free
2kg+ Free

Prices quoted are for delivery to all parts of mainland UK except certain Scottish postcodes (where the price is higher for items sent by courier. Delivery of food abroad (including Channel Islands, N. Ireland and other islands around the UK) is charged at a higher price and free delivery is not available. Temperature controlled products, such as Insulin, are also not always subject to the standard and/or free delivery options.

For full information on our delivery charges, including prices on heavy deliveries to Scotland and abroad, see our delivery information page.

We can deliver most items to all around the world, but prices do vary. The majority of light weight orders (less than 1.5kg) can be delivered for a flat rate of £10. For an accurate estimate of the delivery charge, please put the items you require in your basket and use the "Estimate Delivery" system on the shopping basket page (you only need to enter your country and postal/zip code) for a quick quote. For deliveries to the USA you may need to go to the checkout page and enter your full address to get a quote (as some services need your state in order to quote too). For more information on international deliveries, please see our delivery information page.

Delivery of aerosols

Due to restrictions aerosols can't be sent by Royal Mail. We appreciate your understanding.

Delivery of temperature controlled items

Some products, such as insulin and frozen food, need to be delivered in insulated packaging to prevent them from getting too warm (or too cold) during transit from us to you. Purchasing any of these items in your order will result in a £1.99 charge being added to the total to cover the high cost of the insulated packaging materials. You only pay the £1.99 once per order, regardless of how many temperature controlled items you purchase in that order.

How do I cancel or return an order?

Please call us as soon as possible if you need to amend or cancel an order on 01582 842096. If your order has been processed for dispatch we will be unable to cancel or amend the order. You will however be able to return your product for a full refund*.

To return an item, you must contact us by phone or email to arrange this BEFORE posting any product back to us. We will explain the process at this stage for you.

*For full details on returns, see our terms and conditions page.

Reviews (1)

Q & A

There are currently no questions for Hills Science Plan Adult Optimal Care Tuna Cat Food - be the first to ask one!