You can add anything from Missing Link, to Solid Gold supplement (forgot what it's called, but you can find it on
www.solidgoldhealth.com), fish oil, flaxseed oil...Any of those things with omega-3 and omega-6 essential fatty acids should make her hair super shiny
I think the groomer was just trying to help, but at least she could have talked about it, not just assumed that you have her on some low quality food. That would have hurt me too

Canidae, from what I have read, is a very high quality food! So don't listen to the lady...You're doing a great job!