Well since you have some suggestions as to foods I'll just throw out some suggestions as to why she (and any dog) would loose weight eating something like that.
The problem with some foods like EVO if they aren't supplemented is it has a rather high protien content. As Jenn suggested this is great for muscle building, but it's also used in a performance dog/sporting dog because protien is a natural enemy to fat storage.
So if your dog gets a proper amount of excersize a food like EVO is going to do more to trim them down and help burn off fat stores they might have had previously.
I'm a bit shakey on the exactly how this works, but it has to do with protien requiring more calories to break down and raising a dogs metabolism from increased consumption of it.
So your dog will use all the energy from the protiens to repair/build up muscle and perform it's regular functions (breathing etc) that much faster because over time it's metabolic rate has increased.
Works fantastic for a sporting dog/working dog that doesn't need/want much fat but lots of muscle strength.
So you see the food your feeding is doing what it's designed to, in that it's trimming Chloe up even more and helping her build muscle.
Of course this is a generic description... it's not going to work exactly like that for every dog... depends on there genetic makeup, breed and so forth.
The problem with some foods like EVO if they aren't supplemented is it has a rather high protien content. As Jenn suggested this is great for muscle building, but it's also used in a performance dog/sporting dog because protien is a natural enemy to fat storage.
So if your dog gets a proper amount of excersize a food like EVO is going to do more to trim them down and help burn off fat stores they might have had previously.
I'm a bit shakey on the exactly how this works, but it has to do with protien requiring more calories to break down and raising a dogs metabolism from increased consumption of it.
So your dog will use all the energy from the protiens to repair/build up muscle and perform it's regular functions (breathing etc) that much faster because over time it's metabolic rate has increased.
Works fantastic for a sporting dog/working dog that doesn't need/want much fat but lots of muscle strength.
So you see the food your feeding is doing what it's designed to, in that it's trimming Chloe up even more and helping her build muscle.
Of course this is a generic description... it's not going to work exactly like that for every dog... depends on there genetic makeup, breed and so forth.