Your dogs paw pads are the truest indicator of his nutritional state. Dry, flaky or cracked pads indicate poor nutrition. This is true no matter how much exercise your dog gets, or on what kind of surface.
You dogs pads will be smooth and free of cracks or flaking, even with regular or long walks on concrete or paving, if he’s had the benefit of good nutrition. When your dog’s pads show he’s in… good condition they’ll look like puppy pads with plenty of moisture. This will be a reliable indicator well into adulthood and even the senior years.
If your dog’s pads are dry, cracked and flaky, consider changing his food and/or adding nutritional supplements that include vitamins E & C, and Omega 3, 6 and 9.