Otoro is the most prized part of the tuna belly, known for its rich, buttery flavor and content. 180cal Health Benefits High in Protein: Essential for muscle growth and repair. Rich in Healthy Fats: Contains beneficial fats, including omega-3 fatty acids, which support heart health. Energy-Dense: Higher calorie content provides energy, especially useful for those with higher caloric needs. Provides Essential Vitamins and Minerals: Contains vitamins such as vitamin A, vitamin D, and B vitamins, as well as minerals like potassium and selenium. Consuming raw or undercooked meats, poultry, seafood, shellfish, or eggs may increase your risk of foodborne illness, especially if you have certain medical conditions.