No you don't. Even though offal (or organ meat) is often suggested in raw or homemade food diets, it's because they're such a potent source of ket nutrients. However, the combination of bestie and fresh meat, provides everything the dog needs, and more. The bestie balancing supplement provides all the missing nutrients, from other sources. (It's the nutrient that's essential, not the ingredient.You can read more in our blogs about this.)All that said, if you want to include offal, you can up to about 10% of the meal, every now and again.