Bone broth is a zero-carb, nutrient-rich liquid made by simmering animal bones and connective tissue for 24–36 hours. It supports hydration, gut health, joint health, and muscle repair—perfect for keto and fasting. Packed with collagen, electrolytes, and amino acids, it can be sipped warm, used in soups, or added to recipes. Chicken, beef, and pork broths offer unique benefits. Add vinegar to boost mineral extraction when making it at home.