How to Switch Dog Food: A Safe 7-Day Transition

Most dogs should switch foods gradually over seven days to reduce vomiting, diarrhea, gas, or appetite changes. Start by mixing 25% new food with 75% old food rather than replacing the entire meal at once.

For days one and two, serve 25% new food and 75% old food. Move to a 50/50 mixture on days three and four, then 75% new food and 25% old food on days five and six before serving 100% new food on day seven.

Keep the total daily calories consistent while changing the ratio, since equal scoops of different foods may not provide equal calories. Check both packages for calories per cup and use a measuring cup or kitchen scale for accurate portions.

Watch stool consistency, appetite, energy level, itching, and vomiting throughout the transition. If mild digestive upset occurs, return to the previous ratio for several days; contact a veterinarian for persistent diarrhea, repeated vomiting, lethargy, or refusal to eat.

Check the listed dimensions for monitor digestion and appetite against the available vehicle space before use.

Puppies, senior dogs, and dogs with sensitive stomachs may need a 10- to 14-day transition. Dogs eating a veterinary therapeutic diet should follow their veterinarian’s instructions, especially when managing allergies, kidney disease, pancreatitis, or another medical condition.

See the complete guide to transition instructions for switching dog food for additional feeding considerations.