I want to change my dog’s diet. What’s the best way to do this?

Changes in diet can be stressful for your dog and can lead to digestive upsets.

At some point, you may need to change your dog’s diet and the best way to do this to reduce the likelihood of a tummy upset, is slowly!

A gradual transition will give your dog (and their stomach) a chance to adjust to the new food and should take around 7-10 days to complete. However, if you know your pet has a sensitive stomach this time frame should be extended.

As recommended by Purina's veterinary nutrition experts, a gradual transition — replacing a quarter of your dog's current food every couple of days — is the most effective way to prevent digestive upset.

Here’s a guide to help

Days 1 to 2:     Feed 3/4 of the normal amount of current food and add 1/4 of the new food. 
Days 3 to 4:     Serve half the current food and half the new food. 
Days 5 to 6:     Feed 3/4 of the new food and 1/4 the previous food. 
Days 7 to 10:   Serve only the new food.

The transition guide was developed by veterinary nutritionists. View the Purina Institute’s guide to switching dog foods.

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If your dog isn’t adjusting to the new food or experiences any digestive upsets, you can try extending the transition over a few more days or get in touch with your vet for advice.  They may suggest a different diet or even adding a probiotic to support the gut through the change.