7 Things Worth Considering

A customer said something to me recently that stuck with me.

She was worried about her dog's coat. Other dogs of the same breed seemed to have shinier, healthier-looking fur, while her dog's coat looked dull. So if you've found yourself Googling “why does my dog's coat look dull?” you're definitely not the only one.

But what struck me wasn't really the question about the fur.

It was what came next:

“Am I doing something wrong?”

And I think so many of us dog moms go there.

We notice something has changed. Their fur isn't as shiny. They're scratching more. Their tummy is off. Their energy seems different.

And suddenly we're mentally reviewing every food we've bought and every decision we've made, wondering where we messed up.

So first: your dog's coat is not a report card on how much you love or care for them.

But it can give you information.

Skin and fur are influenced by nutrition, genetics, environment, hormones, allergies, stress and overall health. Sometimes a change in your dog's coat is simply seasonal. Sometimes it's worth looking a little deeper.

Rather than searching for one ingredient—or one thing to blame—here are seven things worth considering.

1. Start with the big picture - what are they eating?

Before reaching for a "skin and coat" supplement, zoom out.

Is your dog eating a complete, balanced diet? Have their eating habits changed? Are they actually absorbing and using the nutrients they're getting?

Protein, essential fatty acids, vitamins and minerals all contribute to healthy skin and hair. True nutritional deficiencies are uncommon in dogs eating a properly formulated complete diet, but nutrition absolutely plays a role in coat quality.

Veterinary nutrition guidance notes that nutritional imbalances can show up in the skin and coat, while also emphasizing that a dull coat shouldn't automatically be assumed to be a nutritional deficiency. (VCA Animal Hospitals)

Think bigger than one “superfood.” Your dog's overall diet matters far more than any individual ingredient. If you're curious about what actually makes an ingredient worthy of the superfood label, I break down five of my favorite superfoods for dogs here. (Top 5 Superfoods to Improve Your Dog's Health)

2. Take a look at healthy fats

If we're talking about skin and coat, fats deserve some attention.

Essential fatty acids help support normal skin function, and omega-3 fatty acids—particularly EPA and DHA—are also involved in the body's inflammatory response.

Veterinary sources commonly discuss omega-3s as nutritional support for dogs with dry, flaky or irritated skin. (Merck Veterinary Manual)

That doesn't mean pouring random oils over your dog's dinner. More isn't necessarily better, and different omega-3 sources provide different fatty acids.

But it is one reason I like including whole-food sources of healthy fats in Ciccio's diet and why ingredients like chia seeds, flaxseed and hemp seeds regularly find their way into The Barkery kitchen.

Small additions can help create variety without turning dinner into a chemistry experiment.

3. Don't forget the gut

This is probably the one I find most fascinating.

We're learning more and more about the relationship between the gut, immune system and skin—the so-called gut-skin axis.

Research in dogs with atopic dermatitis has found differences in the gut microbiome compared with healthy dogs, and emerging research is investigating whether probiotics and other microbiome-targeted approaches might help support dogs with certain skin conditions. The science is still developing, so this isn't a case of “fix the gut and you'll fix the coat.” But the connection is worth paying attention to. (PubMed – canine gut and skin microbiome research)

It's one reason I'm such an advocate for dietary variety. I've written more about why variety matters in your dog's diet and how to add it simply if you'd like to dig deeper.

Ciccio doesn't eat exactly the same bowl every day. His kibble provides the base, but I rotate small amounts of fresh foods depending on what we have—vegetables, fruit and different protein sources.

Nothing complicated.

Because supporting your dog's diet doesn't have to mean creating a perfectly formulated Instagram-worthy bowl twice a day.

It has to be something you can actually keep doing.

4. Consider seasonal changes

Sometimes fur is… fur.

Dogs shed. Seasons change. Indoor heating comes on. Humidity changes. Some breeds undergo dramatic seasonal coat changes while others barely seem to notice. My dog Ciccio is a mix - labrador and maremma sheep dog. I spend most of my days cohabitating with white clouds of fur… his shedding might improve a bit, but it will always be the bane of my Roomba’s existence.

And comparing your dog's coat with another dog's—even one of the same breed—isn't necessarily useful.

Research into healthy canine skin has even shown considerable variation in skin microbial communities between individual dogs. In other words, there isn't one universal picture of what every healthy dog's skin ecosystem should look like. (PubMed – canine skin microbiome)

Look for changes from your dog's normal, rather than comparing them with that gorgeous Labrador down the street.

5. Think about stress and what's changed recently

We often separate emotional health from physical health, but the body doesn't work in neat little boxes.

Has your dog recently:

• stayed at boarding?
• moved house?
• experienced a major routine change?
• had less exercise or enrichment?
• started a new food?
• been ill?
• started or changed medication?

One change doesn't automatically explain a dull coat, but context matters.

I've learned this repeatedly with Ciccio. When something changes with him, I've become much less interested in asking “What caused this?” and much more interested in asking:

“What's been different lately?”

It's a small distinction, but it's incredibly useful.

6. Look at the skin underneath the fur

A coat that looks a little less glossy is one thing.

A coat change accompanied by redness, persistent itching, bald patches, sores, strong odor, greasy or very flaky skin, repeated ear problems or excessive licking deserves more attention.

Skin problems are common in dogs and can be associated with allergies, parasites, infections and other medical conditions—not simply diet. (VCA Animal Hospitals)

That's where I stop experimenting with the food bowl and talk to my vet.

Nutrition can support health.

It isn't a substitute for finding out what's actually wrong.

7. Stop looking for the magic ingredient

You knew I was going here, didn't you?

I love ingredients.

I'm a canine nutritionist who literally built a dog treat business around them.

I can happily talk to you about chia seeds, spirulina and vegetables until everyone else leaves the room.

But there is no magical ingredient that guarantees a glossy coat.

Take spirulina.

There is interesting canine research behind it. One study found that dogs receiving spirulina had changes in immune response, fecal IgA and gut microbiota stability. More recent research has also investigated its antioxidant, inflammatory and gut-related effects in dogs. That's exciting—but it does not mean spirulina is a magic treatment for dull fur. (PubMed – Spirulina study)

Chlorella is another nutrient-dense microalgae that I love using. Research has examined microalgae including Chlorella vulgaris as potential functional ingredients in canine diets and their effects on digestion and the gut microbiome. Again: interesting nutritional potential, not a miracle coat cure. (PubMed – microalgae and canine nutrition)

That's an important distinction.

Ingredients can support the body. They don't replace the body.

And health is almost never about finding the one “good” food—or identifying the one “bad” thing you did.

Want to make some of this easier?

You absolutely do not need The Barkery to add fresh, nutrient-dense ingredients to your dog's diet.

You can sprinkle a few blueberries into their bowl.

Add a little cooked pumpkin.

Rotate dog-safe vegetables.

Talk to your vet about an appropriate omega-3 source.

Add variety where it makes sense for your dog.

But if you're thinking, Kate, I love you, but I'm not buying spirulina, chlorella, hemp seeds and six other ingredients just to sprinkle half a teaspoon over my dog's dinner…

I got you.

A few easy Barkery options:

Spinach & Chlorella Toppers
An easy way to add spinach, chlorella and other whole-food ingredients to the bowl without stocking your pantry like a canine nutritionist.

Fresh Breath Spiruluna
Made with spirulina alongside simple whole-food ingredients—an easy way to bring a little nutritional variety into treat time.

Chia Seed Crunch
A simple option if you'd like to incorporate chia and flaxseed without wondering what on earth you're supposed to do with the enormous bag you bought.

None of them are magic.

That's actually the point.

They're simply easy ways to make small, consistent additions to the diet—because those are the changes I believe matter most.

From Kate

If there's one thing I wish I could have told that customer immediately, it's this:

Please don't compare your dog's coat with somebody else's dog and decide you're failing.

Pay attention, absolutely.

Changes in our dogs can give us useful information, and noticing those changes is part of knowing them well.

But dog health isn't the result of one perfect bowl, one supplement or one decision.

It's the sum of genetics, nutrition, movement, environment, veterinary care, stress, age, lifestyle—and about a thousand other things we don't completely control.

Our job isn't to achieve perfection.

It's to notice.

Stay curious.

Make small changes when they make sense.

And keep showing up.

That's pretty good dog parenting in my book.

— Kate

Keep reading:

Why Variety Matters in Your Dog's Diet

Top 5 Superfoods to Improve Your Dog's Health

Kate is a certified canine nutritionist and founder of The Barkery, a small-batch dog treat bakery in Ticino, Switzerland. She believes better dog nutrition shouldn't require perfection, fear or a pantry full of supplements—just better information and small choices that work in real life.