I dunno ... it might. If you do end up trying the Annamaet though, please report back! I had been considering that one for Chloe as she gets fat just looking at food (kind of like me, LOL) but since Mulder didn’t do well with chicken and it was easier to have them on the same thing I hadn’t done it, but might want to in the future.
Have you tried just cutting portions and adding green beans? Chloe had been maintaining her weight well on Taste of the Wild Sierra Mountain (I think it’s about 330 calories/cup) - she seems to do better on GF when it comes to weight maintenance, but even so was only getting 1.25-1.5 cups a day despite being very active. She’s fine with chicken though - right now she’s eating PP puppy & rice which is chicken based and not having any issues with it, so maybe the lower fat Annamaet would let her eat a little more once her nutritional needs go back to normal.