Key points
- Switch over 7 days, or 10 to 12 for cats and sensitive stomachs.
- Mix by calories, not by scoops, so weight stays steady.
- Never leave a cat without eating for more than a day.
- Call your vet for vomiting, ongoing diarrhoea or blood in the stool.
On this page
The 7-day switch
Days 1 and 225% new75% old
Days 3 and 450% new50% old
Days 5 and 675% new25% old
Day 7100% new0% old
For sensitive stomachs, older pets and most cats, stretch each stage to three days, making it a 10 to 12 day switch.
Keep the calories steady
Two foods can differ by hundreds of calories per kilo. Mix by calories, not by scoops, or your pet can gain or lose weight during the switch. Every product page in our shop lists calories per kg and per 100 g.
Picky eaters
- Cats in particular can refuse a new food. Warm wet food slightly and offer it at the usual mealtime.
- Do not leave a cat without eating for more than a day. Go back to the old food and switch more slowly.
- Keep the new food fresh: an open bag of dry food loses its appeal after a few weeks.
When to stop and call a vet
Questions
Can I switch food immediately?
Only if a vet tells you to. Otherwise switch over at least a week.
Is it fine to rotate flavours?
Within the same line and recipe type, most pets handle it well. Changing brand or recipe type needs the gradual switch.
This guide is general information for healthy pets, not veterinary advice. If your pet has a health condition, is pregnant, or is losing or gaining weight unexpectedly, talk to your vet.