I have read a lot about the health benefits of grass-fed beef versus feedlot beef. I wonder whether there are similar benefits to fish that eat a natural diet versus fish that eat mainly commercial fish food?

Is anyone aware of any studies comparing perhaps CC raised on floating pellets versus CC in unfed ponds, in terms of cholesterol/fat/protein makeup? Google isn't turning anything up.


Ponds in TX, lake place in WI, me in CA