Pet Health Library

Passover & Pets

Updated: 4/3/25

For many households, preparing for Passover means removing chametz (leavened grains) from the home. While pets aren’t required to “keep kosher,” some owners choose chametz-free pet food to help maintain a chametz-free home during the holiday. If you’re planning to switch your pet’s food, keep in mind that sudden changes can upset their stomach. A gradual transition is best, and we’ve put together a simple step-by-step guide to help. If your pet experiences digestive issues, such as vomiting, diarrhea, or loss of appetite, slow the transition even further. And once the holiday ends, don’t forget to ease them back onto their regular food just as gradually.

Passover & Pets: Transitioning to a Chametz-Free Pet Food Preparing for Passover often includes removing all leavened grains (chametz) from the home. While pets aren't required to "keep kosher," many owners choose chametz-free pet food to help keep their homes aligned with holiday traditions. Since a sudden food switch can upset your pet's stomach, it's best to transition gradually. Here's how to do it safely: Start the transition 10 days before Passover. 27 28 29 30 1 Days 1-3 Days 4-6 Days 7-9 Day 10 75% old food 25% new food 50% old food 50% new food 25% old food 100% new food 75% new food After Passover, use the same plan to transition back to your pet's regular food. @ Avoid Chametz: • Wheat, barley, rye, oats, spelt • Brewer's yeast • Wheat gluten • Barley-based additives Look for Alternatives: • Pet food without chametz (check the ingredient list) • Kitniyot-based foods like corn, rice, and legumes Watch for Digestive Upset ! • Vomiting • Diarrhea • Loss of appetite If you notice these signs, slow down the transition!

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