The 8-week elimination diet protocol

This is the practical version of the elimination diet article — a step-by-step protocol you can actually run.

What you need before you start

• One novel-protein food (commercial or home-cooked, but consistent for 8 weeks).
• A reliable supply for two months — sourcing inconsistency is the #1 reason eliminations fail in India.
• Unflavoured versions of any monthly medications (talk to your vet a week before you start).
• A weekly check-in plan — 10 minutes every Sunday is enough.
• A photo of your dog’s paws, ears, and any inflamed skin, dated today.
• Buy-in from anyone in the household. Treats slipped under the table count.

Week 0 — transition

• Days 1–3: 75% old food, 25% new.
• Days 4–6: 50/50.
• Days 7–9: 25% old, 75% new.
• Day 10 onward: 100% new food.

Loose stools in the first week are common as the gut adjusts. They usually settle by the end of week one. If they don’t, talk to your vet — the issue may be a specific ingredient in the new food, or a transitional adjustment that needs more time.

Weeks 1–8 — strict elimination

The food is the food. Nothing else passes your dog’s lips. The list of “no”:

• Treats of any kind, except plain elimination-protein.
• Pill pockets, unless they match.
• Flavoured chews, rawhides, bones, dental sticks.
• Flavoured toothpaste.
• Cheese, yoghurt, peanut butter (yes, all of these).
• Table scraps. The piece of toast that fell. The naan corner from dinner.
• Treats from the neighbour. Treats from the daily walk. Treats from the watchman.

The list of “yes”:

• The elimination food.
• Plain water.
• Treats made entirely from the elimination protein (plain dehydrated meat, a piece of the kibble used as a reward).

If you slip — and most pet parents do at least once — note it in your tracker. Don’t restart the clock for a single small slip; just hold steady and continue. If you slip multiple times or have a big slip (a chicken meal at a friend’s house), realistically extend the trial by another 2 weeks.

Weekly tracking — the 6-line check

Every Sunday, take 10 minutes. Same six lines, same metric scale (1–5, or none/some/lots — pick one and stick).

1. Itching frequency.
2. Paw licking frequency.
3. Ear flares this week (Y/N, which ear).
4. Stool quality (firm / soft / loose).
5. Energy level.
6. Anything new this week (medication, candle lit, neighbour fed scraps).

Take a fresh photo of paws, ears, and any inflamed skin. Photos beat memory.

What to expect, week by week

• Weeks 1–2: Probably no skin improvement yet. Stools may settle.
• Weeks 3–4: Earliest food-driven improvement might show. Less paw licking, fewer scratches a day.
• Weeks 5–6: If food is the driver, you’ll usually see clear improvement. Compare current paw photo to week 0.
• Weeks 7–8: End of phase. Decide whether to reintroduce.

Week 9 onward — the reintroduction

This is the part most people skip. Don’t.

Add one ingredient at a time. The previously-eaten protein (usually chicken) goes first. Small amounts of plain cooked chicken, daily, for 7–14 days. Watch for:

• Itching returning.
• Paws flaring.
• Ear suddenly smelling.
• Loose stools.

If you see a reaction, that ingredient is your trigger. Remove it. Hold a few days on the elimination food alone, then introduce the next ingredient.

If you see no reaction in 14 days, that ingredient is not a trigger. Add the next one.

Order:

1. Most-eaten previous protein.
2. Next protein (beef, lamb).
3. Dairy.
4. Grain.
5. Egg.

This phase takes weeks. The information is permanent.

What to do if 8 weeks pass with nothing

• Food is probably not the primary driver.
• Move to environmental work — see The household audit and The shampoo and grooming reset.
• Talk to your vet about a serum allergy panel for environmental allergens.
• Consider a hydrolysed-protein prescription diet as a stricter test.

Read the full elimination diet explanation · Take the 2-minute Allergy Check

The elimination diet is mostly about being stubborn for two months. The information you get is permanent.

This article is education, not diagnosis. If symptoms persist or worsen, please see your vet.