Treat your bestie to the beefy flavor he loves with Best Dog Treats Beef Chunks Dog Treats. These beef lung cube treats are made from just 100% premium beef—no fillers or grain ingredients, just single-ingredient bliss! Hand-sorted for quality and consistency, they are high in protein, crunchy, and big on meaty flavor. Beef lung provides a good natural source of riboflavin, pantothenic acid, potassium, zinc, copper, vitamin C, niacin, vitamin B12, and iron, so you can feel good knowing your pup’s getting a healthy nutrient boost with every bite.