Creatine, a compound that supports energy production in muscles, is found in foods like lean meats, dairy products, and seafood. Lean meats (e.g., pork, beef, venison) provide the highest creatine content, while dairy products (e.g., milk, yogurt) and seafood (e.g., salmon, tuna) offer moderate amounts. Cooked animal products like bone broth and liver also contain creatine. In addition, fermented foods (e.g., kimchi, sauerkraut) may have lower creatine levels but still contribute to the overall intake.