Unagi With Eel Sauce. 180cal Unagi, or freshwater eel, is a nutritious and flavorful ingredient often used in Japanese cuisine. Health Benefit High in Protein: Essential for muscle growth and repair. Rich in Healthy Fats: Contains monounsaturated and polyunsaturated fats that support heart health. Excellent Source of Vitamins: Provides high levels of vitamins A, D, and B12, which are important for vision, bone health, and red blood cell production. Rich in Omega-3 Fatty Acids: Supports heart health, reduces inflammation, and improves brain function. Contains Essential Minerals: Provides potassium, magnesium, and phosphorus, which are important for various bodily functions. Consuming raw or undercooked meats, poultry, seafood, shellfish, or eggs may increase your risk of foodborne illness, especially if you have certain medical conditions.