Merrick dog food is widely regarded among the best quality dog food brands available on the commercial market. Lots of people are searching for merrick dog food reviews to observe the way different dogs have done to the foodstuff. Merrick Grain Free and Classic varieties come in bags of 4lbs, 12lbs and 25lbs, whereas the Limited Ingredient Diet and Backcountry varieties include bags of 4lbs, 12lbs and 22lbs. Some flavors of Merrick Classic also come in 15lb and 30lb bags.