WOLF RUN: This is a great blend in rotation and a great probiotic blend. The main meat source is tripe. Tripe is nature's perfect probiotic. Premium Grass-fed Beef Tripe: has pro-biotics which aid with digestion, cleans and purifies the blood, removes toxins, parasites, and fungus Beef: Protein and Vitamin B12, which provides energy and good muscle health Beef Organs (Liver, Kidney): Which have just about every nutrient, B vitamins, folic acid, and minerals there is. Which promotes a stronger healthier immune system? Fat: help promote healthy skin and shinier coat, helps manage metabolism, fights off illness and diseases, and increases brain function A product made from grass-fed beef tripe, beef organ meats (Liver & Kidney), beef muscle meat, Fat content around 10% - Never any hormones or antibiotics. All ingredients are sourced here in the USA from USDA inspected processors Guaranteed Analysis:Crude Protein (Min) 18%Crude Fat (Min) 8%Crude Fiber (Max) 0.2%Moisture (Max) 73%Ash (Max) 1.55%Calcium (Min) 0.20%Phosphorus (Min) 0.13% Calorie Content:(ME as Calculated)1440 kcal/kg654 kcal/lb40.8 kcal/oz