Husky grain-free switch causing loose stools

Loose stools appearing within a week of switching to grain-free is actually a pretty common pattern — and it's usually telling you something useful. Grain-free foods are often higher in protein and fat, and they frequently swap grains for legumes like peas or lentils, which can be harder on a dog's gut than people expect. Before we jump to conclusions, it helps to know: what grain-free food did you switch to, what were you feeding before, and how did you make the switch — gradual transition or fairly abrupt?

That's a helpful picture. Five days is a reasonable transition, so this isn't just a speed-of-change issue. Lily's Kitchen grain-free uses lentils and chickpeas as the carbohydrate base, and for some dogs — Huskies included — that legume load genuinely doesn't agree with them. Huskies have a digestive system that evolved on fairly lean, simple protein sources, and the high-legume, higher-fat profile of many grain-free foods can tip them into loose stools without there being anything else wrong. A few quick questions: is his appetite normal, is he drinking the same amount as usual, and have you noticed any increase in gas alongside the loose stools?

The gas alongside the loose stools points fairly clearly to fermentation in the gut — the legumes aren't being digested cleanly and are feeding bacteria lower in the digestive tract. The good news is this isn't a food intolerance in the clinical sense; it's more that grain-free with a heavy legume base just isn't the right fit for him. My recommendation would be to move him back toward a food with a simpler carbohydrate source. I'd go with Forthglade Complete Grain Free Chicken with Brown Rice and Vegetables — it uses rice rather than legumes as the carb base, keeps the ingredient list short and digestible, and the protein level is sensible for a Husky without being excessively rich. It's also a gradual, easy format to transition with. Switch over ten days rather than five and I'd expect the loose stools to resolve within two weeks of completing that transition.

Go back to the Pro Plan for now. There's no benefit in keeping him on a food that's actively unsettling his stomach while you wait for the new one to arrive. A few days back on something he was stable on won't cause problems, and his gut will likely settle quickly once you remove the legume load. When the Forthglade arrives, start the ten-day transition from the Pro Plan rather than from the Lily's Kitchen — that way you've got a clean, known baseline to move from. If the loose stools don't fully resolve within two to three weeks on the Forthglade, that would be worth a vet conversation to rule out anything else going on.

You're welcome. It sounds like a straightforward case of the wrong carb source rather than anything more complicated — he should do well once you get him onto something with rice as the base. Good luck with the switch.