If you are adding 20% or less you don’t need to worry about balancing the vitamins and minerals, but if you are adding more than 20% you do need to make sure it is balanced. A leg quarter would definitely be more than 20% of 2 cups + 1/2 can. You do have a little leeway with that as long as your calcium/phosphorus ratio is OK. I’m not sure if a leg quarter would need a little extra meat added or not, it would be pretty close. I would still add a half dose of some kind of animal derived omega 3, maybe a half dose of vit D and E, and some kind of superfood at the very least.
Hound Dog Mom would be a good one to get her opinion on this.
