How to change dog food: a gentle guide

Transition your dog to new food gradually over 7 days. Start by mixing 25% new food with 75% old food for days 1-2, then increase to 50/50 for days 3-4, then 75% new food for days 5-6, and finally 100% new food by day 7. This gradual approach prevents digestive upset and helps your dog adjust comfortably.

Changing dog food, and switching your dog to a higher-quality, natural diet can be one of the most impactful decisions you make for their long-term health. Not only can a better food support digestion, skin and coat condition, and energy levels, but the right transition strategy can ensure the change is comfortable and stress-free for your furry friend.

At the Natural Dog Food Company, every recipe is crafted with premium, 100% natural ingredients — from human-grade meats to wholesome grains and vegetables — to make the switch not just easier, but genuinely healthier for your dog.

Here we look at how to change dog food safely.

Changing dog food too quickly: symptoms

Dogs’ digestive systems are finely tuned to what they’re used to eating. A sudden switch from one diet to another can cause discomfort, even from a regular commercial diet to a natural one — but when introduced gradually, the body has time to adapt its gut bacteria and digestion.

Watch for these common signs that you’re switching too fast:

• Loose stools or diarrhoea
• Vomiting
• Excessive gas
• Stomach gurgling
• Loss of appetite
• Lethargy
• or refusal to eat.

These symptoms occur because your dog’s digestive enzymes and beneficial gut bacteria haven’t had time to adjust to the new food’s protein sources, fat content, and ingredients. If you notice any of these signs, simply slow down the transition process, go back a step in the mixing ratio and stay there for an extra 2-3 days before progressing. Most dogs will settle once given more time to adapt. However, if symptoms persist for more than 48 hours or seem severe, consult your vet to rule out food allergies or sensitivities. Read more on what to expect in the first 30 days of feeding your dog better dog food here.

How to switch dog food: step-by-step:

Start by mixing a small amount of new food into the old, then steadily increase the proportion over several days. Over about a week, most dogs comfortably adjust to their new meal plan.

• Day 1–2: 75% old food + 25% new food
• Day 3–4: 50% old food + 50% new food
• Day 5–6: 25% old food + 75% new food
• Day 7: 100% new food

This simple approach reduces digestive shock, giving your dog the best chance to thrive on their new diet. As you go, keep an eye on appetite, stool quality and overall energy — mild changes are normal, but ongoing issues may mean slowing the transition further.

Choosing the right natural dog food for your dog

The Natural Dog Food Company offers a wide selection of recipes designed for all ages, tastes and sensitivities. Explore the full range here: Natural Dog Food Company Shop.

Classic Complete Diets

Adult Hypoallergenic Dog Food – A complete, gentle diet ideal for dogs with sensitivities.

• Hypoallergenic Adult Chicken Dog Food
• Hypoallergenic Adult Salmon Dog Food

Hypoallergenic Senior Light Dog Food – Lower calorie and ideal for older or less active dogs.

Puppy & Life Stage Nutrition

Hypoallergenic Puppy Food Chicken – Specially formulated for growing pups and small breeds.

Grain-Free & Sensitive Formulas

For dogs with grain sensitivities, the grain-free range delivers wholesome nutrition without compromise:

• Grain Free Adult Chicken Dog Food
• Grain Free Adult Lamb Dog Food
• Grain Free Adult Salmon Dog Food
• Grain Free Adult Duck Dog Food

Variety Packs & Treats

If your dog enjoys a mix of flavours or you want to encourage enthusiastic eating, browse the Natural Dog Food Company’s selection of natural dog treats and variety packs.

• Sensitive Variety Pack
• Adult Variety Pack
• Treats: Chicken, Duck & Turkey / Salmon & Trout

How to transition dog food

• Take it slowly — extending the change to 10–14 days can help sensitive dogs.
• Add a splash of warm water to release aromas and encourage fussy eaters.
• Watch for improvements such as cleaner stools, shinier coat and better energy.

Why natural food makes a difference

Natural dog food diets avoid artificial additives, fillers and by-products. Instead, they use real, recognisable ingredients such as chicken, salmon, lamb, brown rice and vegetables. Dogs often respond instinctively to food that smells and tastes like genuine ingredients — mealtimes become something they look forward to.

Summary

Switching to a better diet doesn’t need to be overwhelming. With a gentle transition plan and a thoughtfully chosen recipe from the Natural Dog Food Company, you can support your dog’s comfort, digestion and overall wellbeing for years to come.

Explore the full range here: Natural Dog Food Company Shop.

Keep in touch:

Facebook: @naturaldogfoodcompany
Instagram: @naturaldogfoodco

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