Boxer arthritis supplement after cod liver oil issues

Cod liver oil causing loose stools in dogs is actually really common — the high vitamin A content can upset the gut, especially at the doses needed to deliver meaningful omega-3s for a larger dog. So you're not imagining it, and switching is the right call. Before I point you toward something better, tell me a bit more about your Boxer: how old are they, roughly how much do they weigh, and what are you seeing day-to-day — is it morning stiffness, reluctance on stairs, slowing down on walks, or a mix?

That pattern — morning stiffness, hesitating before a jump, fading on walks — is classic early-to-mid arthritis in a Boxer of his age. Boxers are prone to it, partly because of their build and the wear on their joints over time. The good news is that's very manageable. What I'd steer you toward is YuMOVE Joint Supplement for Large Dogs. It combines glucosamine, chondroitin, and ActivEase green-lipped mussel — which is a much more bioavailable source of omega-3s than cod liver oil, and crucially it doesn't carry the vitamin A load that upsets the stomach. At 30kg he'd be on the large-breed dose, and most owners see a real change in morning mobility within four to six weeks.

Yes, genuinely. The reason cod liver oil causes that problem is the combination of fat load plus high vitamin A — both can irritate the gut if the dose is meaningful enough to actually work. YuMOVE uses green-lipped mussel as its omega-3 source instead, which is much lower in fat volume per tablet and doesn't carry that vitamin A issue at all. It's a chewable tablet rather than an oil capsule, so there's no fat bolus hitting the gut at once. In eight years of seeing dogs switched from cod liver oil to YuMOVE, loose stools resolving is almost universal within a few days.

Look for YuMOVE Joint Supplement for Large Dogs — it comes in a 240-tablet tub which is the most economical way to buy it, and at his weight that's roughly a two-month supply on the loading dose. There's also a YuMOVE PLUS version which has a higher concentration of active ingredients; that's worth considering if you don't see enough improvement after six weeks on the standard version, but I'd start with the regular large-breed formula first. Both are well stocked on Amazon UK with next-day delivery on Prime.

A couple of things that make a real difference alongside the supplement: keep his walks shorter but more frequent rather than one long one — 15 to 20 minutes two or three times a day is easier on arthritic joints than a single 40-minute outing. If he's carrying any extra weight, even half a kilo off makes a measurable difference to joint load in a dog his size. And an orthopaedic memory foam bed is genuinely worth it at his age — it reduces the stiffness that builds up overnight. But the YuMOVE will be your biggest lever. Most owners with a dog in his situation are pretty surprised how much brighter he looks after a month.