10 calories per 1 tbsp. This product contains 580 mg sodium per serving. Our regular soy sauce contains 960 g sodium per serving. Reduced Sodium (37% less sodium than regular soy sauce. See nutrition information for sodium content). Traditionally brewed Taste of Inspirations. Soy sauce is produced using honjozo the traditional Japanese brewing method. This method harnesses the natural power of microganisms over months to produce a full flavored soy sauce.