Check you can take part by completing our short registration form below.

It only takes a couple of minutes!

We'll need to check your puppy's medical history to make sure they are fit to take part.

Our team will contact your vet to get the information we need. All you'll need to do is confirm you're happy for them to send it to us.

We'll randomly assign you to one of the two study groups.

If you're selected for the group that's feeding the study food, we'll send it to you.

For those continuing on their current food, we'll reimburse you for 4 months worth of food.

Speak to a Joii vet from the comfort of your own home.

We'll just check everything is a-ok and that you are ready to start.

You'll receive 2 sets of scales. A scale for weighing your puppy and a scale for weighing food.

We'll also send a wearable device that your puppy needs to wear on its collar to monitor its activity.

If you will be feeding your puppy the study food, we'll also send this.

If you're feeding your puppy the study food, you'll slowly change their food over a couple of weeks.

There's no need to worry, the study food has been fully tested to make sure it's tasty and safe for your puppy.

Answer a few quick questions each week throughout the study.

Each questionnnaire will only take a couple of minutes and is completed in the Joii app.

You'll also have a fortnightly free video health check with our vets and nurses. 

As a thank you for completing the study, you'll receive a £150 Amazon gift voucher.

Check you can take part by completing our short registration form below.

It only takes a few minutes!

We'll need to check your cat's medical history to make sure they are fit to take part.

Our team will contact your vet to get the information we need. All you'll need to do is confirm you're happy for them to send it to us.

You'll receive food for the study and 2 scales. A scale for weighing your cat and a scale for weighing the food.

Everything provided is free and will be delivered to your front door.

Speak to a Joii vet from the comfort of your own home.

We'll check you've got everything you need and that your cat is ready to start.

You can then begin to slowly change your cat's food.

You'll do this over a couple of weeks.

There's no need to worry, the study food has been fully tested to make sure it's tasty and safe for your cat.

During this period you'll have a free call with a Joii nurse, who will check everything is ok and answer any questions you may have.

Answer a few questions throughout the study from the comfort of your sofa.

Each form will only take a couple of minutes.

You'll have a couple of free health checks with a Joii vet.

We'll just be checking everything is going smoothly and making sure your cat is keeping well.

As a thank you for completing the study, you'll receive a £100 Amazon gift voucher.

You'll also get the study food for free until it's commerically available and your cat will continue to receive free Joii vet consultations whenever they need one.