Food transitions fail when they go too fast: a 7-day gradual schedule protects the gut microbiome, and sensitive dogs may need 10–14 days.
| Item | Detail |
|---|---|
| Days 1–2 | 25% new / 75% old |
| Days 3–4 | 50% / 50% |
| Days 5–6 | 75% / 25% |
| Day 7 | 100% new |
| Sensitive guts | Extend each step to 3–4 days; add fiber support |
Why the schedule works
Gut microbes adapt to substrate — an abrupt substrate change (new protein, new fiber profile) starves one population and floods another, producing the classic transition diarrhea. Gradual mixing lets populations shift. Our full 7-day transition schedule includes the sensitive-dog extension and troubleshooting.
Troubleshooting a rough transition
Loose stool at any step: hold the ratio for two extra days rather than pushing forward. Persistent diarrhea past the schedule: step back a stage, add a fiber source (our beet pulp file), and see the vet if it exceeds 3–4 days or the dog is unwell. Breed-sensitive guts (Shepherds especially) get the extended protocol in our Shepherd guide.
FAQ
Can I switch dog food cold turkey?
Adult dogs sometimes tolerate it; sensitive dogs and puppies predictably do not. The 7-day schedule is cheap insurance.
What if diarrhea starts mid-transition?
Hold the current ratio 2–3 extra days. If it persists or the dog seems unwell, step back and call the vet.
Related reading: 7-day schedule · Beet pulp file · Shepherd guide · All FAQs