Samoyed skin dryness and hypothyroidism

A hypothyroidism diagnosis that's being managed through diet rather than medication is actually quite a delicate situation for skin health — thyroid function directly affects how well a dog produces and regulates skin oils, so even mild cases can cause noticeable dryness, especially in a double-coated breed like a Samoyed where you might not spot it until it's quite advanced. Before I point you toward anything, can you tell me a bit more about what you're seeing? Is the dryness all over or concentrated in particular spots — along the back, around the ears, the belly? And has his coat changed texture at all, or is it mainly the skin underneath that seems dry and flaky?

That pattern — dull coat, flaky skin along the topline and tail base, biting at the tail — is really classic for thyroid-related skin changes in dogs. The tail base in particular is almost a signature spot. The diet management for his hypothyroidism will be helping his thyroid function, but it doesn't fully compensate for the reduced sebum production that comes with it. What's he currently eating? I'm asking because some thyroid-supportive diets are quite low in fat, which can actually make the skin dryness worse — it matters for what I'd suggest adding.

That makes a lot of sense as a thyroid management strategy, but it does mean his skin is likely missing the fatty acids it needs to stay supple — low-fat diets can be a real double-edged sword here. The good news is you can supplement omega-3s separately without meaningfully increasing dietary fat in a way that would affect his thyroid management. Has he had any fish-based supplements before, or is this new territory? And is he on any other supplements currently — anything the vet has recommended?

Good to know — and it's reassuring that everything else is stable. Given what you've described, I'd go straight to a concentrated fish oil supplement rather than a general skin-and-coat product. Many of those contain additives or evening primrose oil that aren't necessary here and can complicate things. The one I'd recommend is YuMEGA Plus Oil by Lintbells — it's a high-strength omega-3 and omega-6 blend in liquid form, made specifically for dogs with skin conditions, and it's particularly well regarded for exactly this kind of thyroid-related coat and skin dullness. You just drizzle it over his food. At nine, with a low-fat diet and compromised sebum production, he needs a reliable, clean source of EPA and DHA, and YuMEGA Plus delivers that without anything extraneous. It's widely available on Amazon UK. I'd give it six to eight weeks — you should start to see coat texture improve before the skin dryness fully resolves, so the shine coming back is usually the first sign it's working.

Yes, worth a quick mention — not because there's a known conflict between fish oil and dietary thyroid management, but because your vet knows his full picture and it's good practice at his age. It's also a useful conversation to have because some vets will want to recheck thyroid levels after six months anyway, and adding a supplement gives you a clear before-and-after baseline. Most vets are very comfortable with YuMEGA Plus specifically — Lintbells is a well-known brand in veterinary circles. Just drop them a message rather than booking a full appointment; it's a straightforward thing to sign off on.