BARF vs PMR Diet: Which Is Best for Your Dog?

If you're new to raw feeding, you've probably encountered these two terms: BARF and PMR. Both are legitimate, scientifically-informed approaches to feeding raw diets to dogs, but they differ in philosophy, ratios, and practical considerations. Understanding these differences helps you choose the model that best suits your dog's needs, your lifestyle, and your goals. Let's break it down. Our PMR guide and BARF guide provide detailed implementation advice for both approaches.

What is PMR? The Prey Model Raw Diet

PMR stands for "Prey Model Raw." It's based on the idea that dogs should eat what their wild ancestors ate: whole prey animals. The PMR model attempts to replicate the nutritional profile of a whole kill—muscle, organs, bones, and all.

PMR Ratio: 80/10/5/5

PMR Philosophy

PMR advocates believe that dogs don't need vegetables, grains, or supplements because whole prey provides complete nutrition. It's a more purist, minimalist approach. The philosophy emphasises mimicking what wolves and wild dogs eat in nature.

Adherents to PMR argue that this simplicity makes it easier to feed a complete, balanced diet without overthinking it. You're not juggling multiple ingredients or worrying about vegetable ratios—you're simply feeding meat in the proportions that whole prey would provide.

What is BARF? The Biologically Appropriate Raw Food Diet

BARF stands for "Biologically Appropriate Raw Food" (some say "Bones And Raw Food"). It was formalised by Dr. Ian Billinghurst, an Australian veterinarian, in the 1990s. BARF includes vegetables and supplements alongside raw proteins, aiming to mirror what a dog might scavenge in addition to fresh kills.

BARF Ratio: 70/10/5/5/10

BARF Philosophy

BARF philosophy argues that domestic dogs benefit from the additional nutrients, fibre, and micronutrients that vegetables and supplements provide. Vegetables like broccoli, spinach, and carrots offer phytonutrients and antioxidants that supplement pure meat feeding.

Dr. Billinghurst's research suggested that adding vegetables increased micronutrient availability and digestive health. Many BARF feeders also include supplements like fish oil for omega-3s, probiotics for gut health, and sometimes ground eggshells for additional calcium. Consult RSPCA guidance on supplementation where needed.

Head-to-Head Comparison: BARF vs PMR

Which Dogs Thrive on BARF?

BARF feeding can be particularly beneficial for certain dogs:

Dogs with Digestive Sensitivity

Dogs prone to constipation often benefit from BARF's vegetable content, which provides fibre that aids digestion and bowel regularity.

Dogs with Yeast Issues (Potentially)

Some raw feeders report that dogs with yeast issues may benefit from BARF's inclusion of anti-inflammatory vegetables like green tripe and organ meats, which may help balance the immune system.

Dogs Requiring Extra Micronutrients

Older dogs, those recovering from illness, or those with specific health conditions may benefit from the additional micronutrients vegetables and supplements provide.

Owners Who Value Supplementation Control

BARF allows owners to fine-tune nutrition by adding specific supplements like fish oil, probiotics, or kelp powder based on their dog's individual needs. The Blue Cross provides useful nutritional information on supplementation.

Which Dogs Thrive on PMR?

PMR is ideal for many dogs too:

Dogs with Sensitive Stomachs

Some dogs do better with a meat-only approach because vegetables can irritate sensitive digestive systems. Fewer ingredients sometimes mean fewer triggers.

Dogs with Food Sensitivities or Allergies

PMR's simplicity makes it easier to identify and eliminate potential allergens. There are simply fewer moving parts to troubleshoot.

Busy Owners Who Value Simplicity

PMR requires minimal preparation compared to BARF. You're not juggling vegetables, measuring supplements, or rotating ingredients constantly. It's straightforward: thaw meat, feed, done.

Dogs Thriving on Meat-Only Diets

Some dogs simply thrive without vegetables. Their coat condition, energy levels, digestion, and overall health suggest they don't need the vegetable component.

Can You Combine BARF and PMR?

Absolutely. In fact, many UK raw feeders use a hybrid approach, sometimes called "PMR+" or flexible BARF. You might feed pure PMR most of the time but add vegetables or supplements weekly or monthly. This gives you the simplicity of PMR with some of BARF's nutritional flexibility.

There's no raw feeding police—what matters is that your dog is healthy, thriving, and getting complete nutrition. Some months you might run to PMR because you're busy; other months you might explore BARF more fully because you have time for more complex feeding.

Cost Comparison in the UK

The cost difference between BARF and PMR is modest. PMR is typically slightly more expensive because it uses more meat relative to total weight. BARF bulks out the diet with vegetables, making the per-kilogram cost slightly lower overall. However, if you're buying quality vegetables, some BARF approaches can be equally expensive.

What Do UK Raw Feeding Communities Recommend?

UK raw feeding forums and Facebook groups are fairly balanced. Most experienced feeders recommend starting with whichever model appeals to you philosophically and practically, then assessing your dog's response after 6-8 weeks.

The consensus is clear: the best raw diet is the one your dog thrives on and that you can sustain long-term. A dog on PMR that's healthy and happy is better off than a dog on an inconsistently-fed BARF diet, and vice versa.

Our Recommendation: Try Both, Use the Calculator for Either

At Nature's Bowl, we believe both BARF and PMR are valid approaches backed by real-world results. Rather than declaring one "better," we recommend:

1. 1. Start with the philosophy that resonates with you. Do you prefer simplicity (PMR) or nutritional flexibility (BARF)?
2. 2. Feed that model consistently for 6-8 weeks, monitoring your dog's coat, energy, digestion, and body condition.
3. 3. If your dog thrives, stick with it. If you notice issues (constipation, dull coat, etc.), try the other approach.
4. 4. Many dogs do best on a hybrid—mostly PMR with occasional vegetable additions or seasonal BARF additions.

Learn More: Detailed Guides for Both Models

For deeper dives into each approach, we've created comprehensive guides:

Calculate Your Dog's Perfect Portions

Whether you choose BARF or PMR, our free calculator works for both. Enter your dog's details, select your preferred model, and get exact daily portion recommendations tailored to your dog's unique needs. For more information, read our guide on raw dog food budgeting in the UK.