Oh, another thing worth mentioning! I have absolutely noticed that my dogs require significantly more food in the wintertime. They burn a lot of calories keeping themselves warm during winter as we are outside a lot regardless of temperature. They generally start packing on weight in the spring when temps turn and that's when I know it's time to start gradually decreasing meal sizes to summer rations.

Here is a photo of one of mine from the top to show what I mean about the hourglass figure. Ribs and hips are the widest, waist is small and narrow. All 3 of my dogs show this figure when viewed from above, but Yonder (in this photo) has the narrowest rib cage (though that may be due to her young age).

Well I couldn't find it but there was some recent genetic research indicating that North American aboriginal dogs are genetically predisposed to use fat better than European derived dogs. I think that likely translates into "holding on to calories". So I looked for advice on how to care for a northern american breed such as the Greenland Dog. I haven't found much but this article has an advised food that looks like it is lo carb. https://animalcorner.org/dog-breeds/greenland-dog/ as well as food adjustments along the life cycle. And some advice for Husky care and feeding including 60

How old is he? It is quite normal for dogs' metabolisms to slow down as they mature into a full fledged adult around 3-4 years of age and can very often start packing on pounds if fed the same amount as when they were younger. Being neutered will also have a similar effect. Working in the dog industry for the past decade has allowed me to see this happen again and again and again... dog is young, lean, healthy up until 1-2 yrs... gets neutered, immediately starts packing on lbs dramatically because the vet never told the owner to reduce food intake. Exercise will only get a dog so far, they re