After feeding tons of feed to the squirrels, I don't feed mine that much now. They have the idea that treats and bugs are all they need. And they wonder why Mom isn't giving them treats like she's supposed to now. I built a treadle feeder but they haven't gotten hungry enough to learn much about it. Hopefully in a day or so I can report better on how much they actually consume. They are getting hungry though, because when I set a bit of food by the back door where the squirrels won't get in it (as long as I'm there watching it), the girls are showing interest.
If they are fine, and healthy, and laying good eggs, I'd not worry much unless they are doing what mine are and completely ignoring their food to eat scratch, oatmeal, or whatever treats they get.