Stock and Broth are sometimes used interchangeably in recipes. But they are quite different. Stock is more flavorful and has a higher level of nutrition while broth is light in color and flavor and is great in recipes where you don't necesarily want to taste the chicken flavor. Chicken bones are required to make stock. Whether or not the chicken meat is involved in the making of stock is personal preference. Chicken broth is made from simmering the meat of chicken, not the bones.