Simmering bones over low heat for an entire day will create one of the most nutritious and healing foods there is. You can use this broth for soups, stews, or drink it straight. The broth can also be frozen for future use. Keep in mind that the “skin” that forms on the top is the best part. It contains valuable nutrients, such as sulfur, along with healthful fats, so just stir it back into the broth. Bone broths are extraordinarily rich in protein, and can be a source of minerals as well. Glycine supports the bodies detoxification process and is used in the synthesis of hemoglobin, bile salts and other naturally-occurring chemicals within the body. Glycine also supports digestion and the secretion of gastric acids. Proline, especially when paired with vitamin C, supports good skin health. Bone broths are also rich in gelatin which may support skin health. Gelatin also support digestive health which is why it plays a critical role in the GAPS diet.