Since both of my pairs were rescues, neither of them were on a good staple diet when I got them. The first pair was on a commercial pellet diet and the other pair came from PP and were being fed the pellets that came with them. Since I switched to HPW I have noticed that both pairs no longer look skinny and they now eat all their staple at night. I used to waste a lot of the staple since they would mostly ignore the pellets in favor of the fruits/veggies that they were now getting from me which they had not gotten in the past, but now they eat the staple first then the fruits/veggies (unless I give them mealies, then they go wild on them first). But overall I see them getting to a better weight and coats that look glossy and feel super soft.