Dogs That Are Very Heavy But Barely Eat At All
These cases are often Hypothyroid but there are other possibilities. For example, appetite suppression occurs in overweight dogs. It’s mother nature’s way of preserving their lives when being predated by a swift predator. The thalamus and other brain structures curb the appetite to keep the animal “fighting fit” but that can be overridden by taste buds and ‘delicious’ foods. With stuff on top.
This document helps owners understand how and why the dogs might barely eat, but are heavy nonetheless.