Why Your Dog’s DNA Wants Them Fat This Winter
It is early December. You have just put down the food bowl. Your dog inhales dinner in thirty seconds, licks the ceramic until it shines, and then looks up at you with the intensity of a creature that hasn’t eaten in weeks.
You feel the guilt rising. You reach for the treat jar. Stop.
Your dog isn’t greedy. They are experiencing an ancient biological trigger known as the "Thrifty Gene." If you give in now, you are setting them up for a January diet that neither of you will enjoy.

1. The "Starvation" Signal vs. Reality
In the wild, a drop in temperature signals the brain to consume calories while they are available. Even though your dog has a guaranteed dinner time, their "wolf brain" is panic-buying calories.
To make matters worse, a dog’s metabolism often slows down in winter to conserve energy (waiting for the cold), just as their appetite ramps up. This is the perfect storm for rapid winter weight gain.
2. The "Green" Filler Hack
You cannot switch off their biological drive to eat, but you can hack it. The goal is to trigger the stretch receptors in their stomach (which tells the brain "I am full") without spiking the calorie count.
Try reducing their regular food a small amount and replacing that volume with warm, low-calorie "fillers" like green beans (low sodium), steamed zucchini, or pure pumpkin puree.
3. The "Winter Stew" Technique
If you feed kibble then putting it in a dry bowl is the least satisfying way to eat in winter. It is consumed too quickly to register satiety.
Instead, add warm water or dog-safe bone broth to their meal. Let it sit for 5 minutes before serving. This expands the food volume by 20% and the warmth mimics the temperature of fresh prey, which is biologically more satiating to a carnivore.
4. The "Guilt Feeder" Trap
Winter is peak season for "Sympathy Weight." When the weather is wet and dark, we walk our dogs less. We feel guilty. To compensate, we use food as a currency of love.
Dogs are experts at reading micro-expressions. They know exactly when your seasonal resolve is weak. Remember: That pleading look in December is often boredom wearing a "hungry" disguise.
5. The Knuckle Test (Do This Weekly)
Winter coats are deceptive. A fluffy coat can hide 2kg of weight gain until spring arrives. Ignore the scales and use your hands.
Make a fist. Run your fingers over your knuckles. That is what your dog's ribs should feel like—defined but not sharp.
Open your hand flat. Run your fingers over the fleshy base of your palm. If their ribs feel like this, they are overweight. Perform this test every Sunday in December.
6. Protein Matters More in Winter
If you are reducing calories, you must ensure you aren't reducing essential nutrients. High-carb fillers in cheap food will just make them hungrier.
Ensuring your dog is on a high-quality, high-protein diet helps maintain lean muscle mass even if their activity levels drop slightly during the colder months.
✅ Use the "Knuckle Test" weekly
✅ Add warm water to dry food
✅ Bulk up meals with green beans
✅ Swap biscuit treats for play/toys
✅ Don't trust the "sad eyes"—it's biology!
The kindest thing you can do for your "starving" winter wolf is to keep them lean enough to run happily when the spring flowers arrive. Tonight, when they give you "the eyes," don't reach for a biscuit. Reach for a ball.
P.S. Staying lean helps joints too. A lighter dog is a happier, more mobile dog.