This means brands that use corn, corn meal, wheat and wheat gluten as main protein sources technically meet industry standards for protein content. (dogs.lovetoknow.com)
There are 3 main protein sources in this food, real chicken, real salmon, and real turkey. (pawster.com)
We recommend building ketogenic meals around main protein sources like grass - fed beef, wild - caught fish, and free range poultry and eggs. (primaledgehealth.com)