How much to feed
Do calorie needs change much between spring and winter?
Last updated 23 September 2026 · How we write and check this
Short answer
For most dogs living indoors with moderate climate exposure, calorie needs do not change dramatically between seasons, though genuine changes in activity level or significant outdoor cold exposure can justify a real adjustment. A dog that walks less in bad winter weather but eats the same amount is a more common cause of seasonal weight gain than temperature itself.
Why the effect is often smaller than expected
Dogs living mostly indoors with regular heating do not usually experience the same cold weather calorie burn that an outdoor working dog would, so the seasonal change in true energy need is often modest for a typical house pet.
The bigger seasonal factor for most pet dogs is a change in activity level, such as shorter or less frequent walks during winter due to weather, dark evenings, or ice, rather than temperature itself driving calorie burn.
When a real adjustment is worth making
Dogs spending significant time outdoors in genuinely cold conditions, thin coated breeds in particular, can burn meaningfully more energy maintaining body temperature and may need 10 to 20 percent more food during the coldest months.
If your dog's exercise routine drops noticeably in winter, whether due to weather or shorter days, reduce food by a similar percentage to avoid gradual weight gain over the season.
Checking in through the year
Weigh your dog every four to six weeks year round and note any seasonal pattern that emerges over a year or two, since some dogs show a genuine and consistent seasonal shift while others do not.
Adjust food in either direction as activity genuinely changes, rather than making a fixed seasonal change regardless of what your specific dog's routine actually looks like from month to month throughout the whole year, since some dogs barely notice the changing seasons at all while others clearly do.
Key takeaways
- Calorie needs for most indoor pet dogs do not change dramatically with the seasons.
- A drop in winter activity, more than cold itself, is the more common cause of seasonal weight gain.
- Dogs spending real time outdoors in cold conditions may need 10 to 20 percent more food in winter.
- Track weight through the year to see whether your specific dog shows a genuine seasonal pattern.