Hi again fellow Canadian! I'm not on the forums often, but wanted to check in on you and Emma
My Tubbs has some kind of allergy/sensitivity that causes her to overgroom. We tried dealing with this with a vet back in 2019 but she almost died due to an adverse reaction to prednisolone, so we've been doing our own thing trying to solve the problem. We were focusing on dry foods that could help, but now that she's on wet food for her diabetes (and knowing now her overall health), I'm trying to find something that helps her in that food type instead. I came across Koha in my search too, and it crossed my mind that perhaps she has a gluten sensitivity? I picked up a case of the Rabbit au jus, and she loves it so far. Only about a week in, but will continue with it in the hopes that it helps her. Is the Koha easily available near you? Definitely challenging to get out here, although it looks like you can buy directly from them, and great enough, they have a factory in Canada that makes it (others in Thailand or something, but I would assume we get the ones made in Canada). One of our local stores places an order with them monthly, so that probably makes the most sense for us to continue (they only had the rabbit, not kangaroo, and I assume kangaroo would be something that would dwindle during these supply shortages). The great thing about the Koha is that it's grain/pea/potato free, no carrageenan, and has things like pumpkin for digestion, cranberries for urinary health, and New Zealand green mussels for joints etc.
I spent a ton of time looking at the ingredients at literally every canned food in Petsmart along with my local pet store, and so many of them have peas, carrots, potatos etc. that I wanted to avoid! Koha was one of the few that didn't, although there were a handful of others. I picked the Koha since the rabbit was a novel protein for Tubbs. Fingers crossed!
Good luck with the food transition, I had my Tubbs on the hydrolyzed dry back in 2019 and I feel like that one caused some serious weight gain for her, so transitioning Emma to a suitable wet food should hopefully knock those numbers down!