Norwegian Lundehund Care & Longevity Guide — Six Toes and a Sensitive Gut

Does your dog have an extra toe or two? Or maybe a tummy that's a bit more sensitive than others? The Norwegian Lundehund is truly one-of-a-kind, a rare gem among dog breeds. Bred to hunt puffins (lunde in Norwegian) on Norway's challenging cliffs, these incredible dogs developed unique traits: six functional toes on each foot, front legs that can extend straight out to the sides, and the ability to tilt their head back to touch their spine. These amazing adaptations made them the perfect cliff-climbing hunters. But alongside these unique gifts, the breed also carries a serious genetic condition called Lundehund syndrome. This condition makes thoughtful nutrition not just important, but truly life-saving. We're here to help you understand and manage it.

Lundehund Syndrome: The Defining Health Challenge

If you share your life with a Lundehund, you know they're special. But we also know that their unique genetics come with a particular health challenge: Lundehund syndrome. This isn't just one issue; it's a group of gastrointestinal disorders that are unfortunately common in the breed. It includes conditions like intestinal lymphangiectasia, protein-losing enteropathy (PLE), and inflammatory bowel disease (IBD). We care deeply about your dog's well-being, and we know that a significant majority of Lundehunds will face some form of intestinal disease in their lives. The good news is that while severity can vary greatly — from no visible symptoms to something more serious — understanding it is the first step to managing it effectively.

Dietary Management of Intestinal Disease

When a Lundehund is diagnosed with intestinal disease, we know how concerning that can be. But here's where we can make a real difference: diet becomes our most powerful tool — often even more effective than medication by itself. Our approach at Fudini focuses on easing the burden on their sensitive intestinal lymphatic system, all while making sure they get enough protein to stay strong. We know what works, and we're here to guide you.

Low-Fat, High-Quality Protein

A low-fat diet is truly the foundation of managing Lundehund syndrome. Think of it this way: dietary fat travels through the intestinal lymphatic system — which is precisely the system that's struggling with lymphangiectasia. When meals are too high in fat, it can simply overwhelm those delicate lymph vessels, leading to more protein loss and uncomfortable diarrhea. We want to make things easier for their system.

• Target fat content: 8–12% on a dry matter basis for dogs with active disease. Healthy Lundehunds without symptoms may tolerate 12–15% — we're aiming for balance here.
• MCT oil as a fat source: Medium-chain triglycerides are absorbed directly into the bloodstream rather than through the lymphatic system, making them the preferred fat source for Lundehunds with lymphangiectasia. Coconut oil is a natural MCT source — a little helper for their digestion.
• Protein: 25–30% from highly digestible sources — white fish, lean chicken breast, egg whites, and cottage cheese are commonly recommended. Our goal is to gently replace lost protein while keeping fat to a minimum, supporting their strength.
• Avoid fatty meats: Lamb, duck, and pork are higher in fat and harder for their sensitive gut to process. Stick to lean proteins only to keep them feeling their best.

Small, Frequent Meals

Instead of the usual two meals a day, we've found that Lundehunds with intestinal disease often thrive on 3–4 smaller meals. This simple change helps reduce the amount of fat and protein their lymphatic system has to handle all at once, preventing any overload on those delicate vessels. Even if your Lundehund is healthy, given their breed's tendencies, they might feel much better with three meals a day. It's a gentle way to support their digestion.

Supplements for Intestinal Support

• Probiotics: These friendly bacteria can really help support a healthy gut and may even reduce intestinal inflammation. We recommend choosing a veterinary-grade probiotic with documented strains for the best results.
• Vitamin B12 (cobalamin): It's quite common for dogs with intestinal malabsorption to be low on this vitamin. They might even need injectable supplementation if their body isn't absorbing it well orally — your vet can guide you here.
• Folate: This is another nutrient that can often be depleted by intestinal disease. Monitoring levels through blood work is a good idea.
• Fat-soluble vitamins (A, D, E, K): When fat isn't absorbed properly, neither are these vital fat-soluble vitamins. Supplementation might be necessary, and blood tests will help guide your vet on the right approach.

The Six-Toed Anatomy: Paw and Joint Care

Beyond their sensitive tummies, Lundehunds have another truly unique feature: those amazing six toes on each foot! They're not just for show — all six are fully formed and functional, complete with extra muscles and tendons. This special polydactyly gave them incredible grip on those slippery Norwegian cliffs. In our modern homes, it simply means we need to give their paws a little extra love and attention.

• Nail trimming: Those six toes mean six nails per foot (and sometimes extra dewclaws too!). We recommend checking and trimming them every 2 weeks. Since those extra toes often don't touch the ground during everyday walks, their nails won't wear down naturally, so they count on us for this.
• Paw inspections: With those extra toes come more little skin folds between the pads, which can be a cozy spot for debris, moisture, and bacteria to gather. A quick weekly inspection between all toes, especially after adventures in wet or muddy places, can prevent issues.
• Traction on smooth surfaces: It's a bit of a surprise, but those amazing extra toes that give them such great grip outdoors can actually make Lundehunds a little less steady on smooth indoor floors. Adding some area rugs on hardwood or tile can really help them feel more secure and prevent slips.

Extreme Joint Flexibility

Another incredible trait of the Lundehund is their extreme joint flexibility! They can extend their front legs straight out to the sides and even bend their head backward to touch their spine — it's a level of mobility you won't see in any other dog breed. While this hypermobility is perfectly normal for them, it does mean that when a vet assesses their joints, they'll interpret things a little differently. What might look like a dislocated shoulder in another dog is just a regular day for a Lundehund!

Usually, this amazing flexibility doesn't cause any problems. However, it can make joint injuries a bit trickier to spot, precisely because their normal range of motion is so vast. So, if your Lundehund suddenly seems to be limping or reluctant to use a limb, it's really important to get them checked by your vet. Even if their joint appears to move normally, we want to make sure everything is okay. We're here alongside you, helping you keep an eye on their unique needs.

Exercise for a Moderate-Energy Rare Breed

Even with all their dramatic physical abilities, Lundehunds are actually quite a moderate-energy breed in their everyday lives. They're wonderfully alert, curious, and playful, but generally not hyperactive. Most adult Lundehunds thrive with about 30–45 minutes of daily exercise — it's all about finding that happy balance.

• Moderate walks: A good 20–30 minute walk, especially on varied terrain, lets them truly use those unique feet of theirs. It's a great way to explore together!
• Climbing and exploration: If you're lucky enough to have safe, rocky terrain or some agility equipment, you'll find Lundehunds naturally love to climb. Those cliff-hunting instincts are still very much alive and well!
• Mental stimulation: These intelligent and independent dogs need their minds engaged just as much as their bodies! Think puzzle feeders, fun scent games, and hide-and-seek with treats. We know what works to keep them happy and sharp.
• Gentle play: Enjoy games like tug, fetch, and interactive toys. We suggest avoiding high-impact activities like long runs on hard surfaces, as these can put unnecessary stress on their wonderfully flexible joints.

For Lundehunds who are managing active intestinal disease, a little moderate exercise after meals can actually be quite helpful for digestion and keeping things moving smoothly. Just remember to avoid anything too vigorous within an hour of eating — we want to give their tummies time to settle.

Feeding the Healthy Lundehund

Even if your Lundehund hasn't been diagnosed with intestinal disease, we believe in a proactive approach to their diet. Given their breed's natural tendencies, thinking of it as preventive care rather than just treatment can make a huge difference in their long-term health. We care about setting them up for success!

• Moderate fat content: We find that 12–15% is a really sensible range for healthy adult Lundehunds. It's best to steer clear of high-fat premium foods often made for very active working breeds.
• Highly digestible protein: Fish, lean poultry, and eggs are wonderful choices. The easier the protein is for their body to absorb, the less strain it puts on their delicate intestinal system.
• Calories: 400–700/day for a moderately active 6–9 kg adult. Lundehunds are small dogs — so even a tiny bit of overfeeding can have a proportionally large impact. We're here to help you get it just right.
• Avoid abrupt diet changes: Their little Lundehund gut is quite sensitive, so any food transitions should be done very gradually, over 10–14 days (that's longer than the typical 7-day recommendation for other breeds). Slow and steady wins the race for their tummies!
• Fiber: Moderate soluble fiber, like pumpkin or oat fiber, is great for supporting their gut health and keeping stool quality good, all without adding extra fat.