VERY interesting! Things have changed a lot for the Average Pet Feeder this year.
I have Lhasas and Shih Tzus, and use a base of Solid Gold Wolf King, with either TImberwolf Organics or Nature’s Variety Instinct added in for protein…HOWEVER, I only use food "flavors" that do NOT contain spinach and celery since these veggies contain oxalates that are hard on the kidneys and bladder. Even the "Premium" brand labels must be read carefully to make sure they are suitable for daily use.
Shih Tzus don’t tolerate Soy very well, and I avoid corn as a general rule, as it is high-glycemic index and estrogenic (ie, makes your pets FAT)…this pretty much disqualifies all food store brands these days.
Enjoy your survey! 😉