There are no meat or meat by-products in Ruff Greens. It’s a VEGAN Plant-Based Product that’s packed with the healthful Bio-Available Proteins, Vitamins, Minerals, Enzymes, and Probiotics that your dog needs for optimum health. What’s not in Ruff Greens, by the way, is just as significant. GMOs, antibiotics, hormones, fillers, artificial sweeteners, colors, or flavors are all absent, as are Chinese ingredients.