Back to the 3 Week Challenge


What is the Purina ONE® 3 Week Challenge?

The 3 Week Challenge is our mission to help more cats lead happier, healthier lives. Once you have registered, you'll receive a £1 off coupon for your next purchase of Purina ONE®. Then you're ready to wean your cat onto their new food. Once your cat is eating Purina ONE exclusively, the Challenge begins. For the next three weeks, your cat should only be fed Purina ONE, during which time YOU could see visible results in your cat's health.

Key elements of the 3 Week Challenge

All participants will receive detailed instructions to help introduce their cat to their new food. A £1 money-off coupon will also be provided. For a period of three weeks, cats are to eat Purina ONE food exclusively. During this time, participants will receive regular encouragement, tips, and a newsletter.

Is the introduction phase really necessary for my cat?

Yes. Cats are very sensitive to dietary change, and their digestive systems require a period of time to adjust. New food should be introduced slowly, gradually substituting new for old over a period of 10 days, or up to two weeks for cats with sensitive stomachs.

When should I start the Purina ONE® 3 Week Challenge ?

The Challenge starts after your cat has completed their transition period, and is eating Purina ONE exclusively.

How much food Purina ONE® should I give my cat?

The recommended daily amounts should be adjusted to weather conditions, your cat's level of activity and their physical condition. For each product, refer to the feeding instructions mentioned on our website within the Tailored Products section. Clean, fresh drinking water should be available at all times.

Can kittens participate in the program?

Unfortunately not. The 3 Week Challenge is only suitable for healthy adult cats, and not for kittens as they are still in a growth stage. To learn more about your kitten's nutritional needs, read the dedicated section in your Cat Mag.

How many cats can I register for the 3 Week Challenge?

You can register up to 5 cats to take the 3 Week Challenge.

What results could I expect from the 3 Week Challenge ?

Start: A great appetite. Due to the delicious taste of Purina ONE®, YOU could notice that your cat has started to eat more eagerly at mealtimes.

Week 1+: High levels of energy and vitality. Your cat's overall health and vitality could appear to have been enhanced by the high quality ingredients in our complete and balanced formulas.

Week 2+: A healthier* digestion. Purina ONE wet and dry recipes contain inulin and chicory respectively - natural ingredients proven to help improve intestinal health and support digestion. *Compared to a product without chicory.

Week 3+: Healthy skin, shiny coat, bright eyes. Purina ONE contains a specific mix of nutrients, including Omega 3 & 6 fatty acids, essential vitamins and minerals to help keep your cat’s skin healthy and her coat shiny. A high level of antioxidants also helps support bright, healthy eyes.

Finish: Strong natural defences. By now, the unique combination of vitamins and minerals in our Purina ONE recipes is working to support your cat's immune system, helping her to stay healthy for years to come.

The 3 Week Challenge is for healthy adult cats.

What if I am not happy with the 3 Week Challenge program?

If you are unhappy with the results from your cat's 3 Week Challenge, we want to hear from you. At the end of your Challenge, you will be asked to complete a form evaluating your cat's progress. Please be honest and let us know what has - and what hasn't - worked for your cat. Please remember that the program is only for healthy adult cats. If you were unsatisfied, you may also contact our Customer Service Team. We will get back to you by email as soon as possible.

What do I do if I don't want my cat's photo to appear in the Purina ONE® Gallery?

At the end of the program, you will be sent a form to evaluate your cat's progress, followed by an invitation to upload a new photo of your cat. You do not have to upload a photo. If you don't want the photo to be posted, do not click on the box marked, "I understand that my review will be moderated and posted (terms and conditions apply)" before clicking "Enter".

Where can I find more information about the moderation of my testimonial and my cat's picture?

For more information regarding moderation guidelines, please visit our Terms & Conditions