Our kittens will be a year old this month. They seem trim (when looking down from above), but if I hold them, they each have a sagging gut area-just above the pelvis. They are both spayed. I am wondering if this is normal or a sign that we are either feeding them too much or they are not exercising enough. It is not extreme, but their skin sags lower in the area just above their hind legs that I could cup in my hand. We feed them 1/4 cup of grain-free dry food each in the morning and 1/4 cup grain-free dry food each at night and they share a 3 oz can of wet during the day.