I have a 6 month old female german shepherd and I’m worried we’re overfeeding her. She’s eating more than the chart recommends, but I didn’t realize how much more until I finished a 25 lb bag in 16 days.. and when I did the math with the chart the bag should’ve lasted us 18 days! The thing is.. we’ve tried cutting down her food and she gets SO hungry. She’s currently 50lbs, I can feel her ribs and spine easily. Should I be worried? The brand is Acana Large Breed Puppy Food.