Niboshi are dried sardines commonly used in Japanese cuisine, particularly in making broth. They are typically small, whole fish that are sun-dried, resulting in a strong umami flavor. Niboshi are often used as a base for soups and sauces, adding depth and richness to dishes. In addition to their culinary uses, niboshi are also valued for their nutritional benefits. They are rich in protein, omega-3 fatty acids, and essential minerals like calcium. This makes them a popular ingredient not only for flavor but also for enhancing the nutritional profile of meals.