First; be sure you feed only a high quality pet food, because you don’t want your dog to be on a weight management food for the rest of her life. Also, you might try adding small portions of "fillers" to the food, one or two at time. Some of the better fillers are green beans (no salt), baby carrots cut and partially cooked, non-fat cottage cheese, plain yogurt or 100% PURE pumpkin. When you are feeding diet foods, be sure you also add a complete vitamin supplement to assure a proper balance of nutrients.
I feed Trixie the Wellness brand and if I see she is putting on a little weight, I mix a little OM (Purina's Overweight Management) kibble. You just have to watch her weight and adjust her food accordingly, until you get the right combo.
Be sure to supervise her when she is chewing on rawhides, because she might choke on the small remnants. Also make sure they are made in USA.
Keep in mind I’m not a vet or nutritional expert. I’m just passing on some of the” tricks of the trade” that have worked for me and my pets. So consider the above merely my humble opinion. If in doubt, please consult your own vet or medical professional. End of disclaimer. LOL