Merrick’s new formula 2020 Dog Food Advisor › Forums › Editors Choice Forum › Merrick’s new formula 2020 Viewing 1 post (of 1 total) Author Posts January 13, 2020 at 10:35 am #151912 Report Abuse ljfooteParticipant Can you please evaluate the new Merrick formula for Merrick Classic Healthy Grains Chicken + Brown Rice Recipe with Ancient Grains Adult Dry Dog Food. They have taken the peas and pea fiber out of the formula and replaced with some ancient grains. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In