Bagoong isda is a traditional Filipino condiment made from fermented fish, typically anchovies or other small fish. The fish is salted and allowed to ferment for several weeks, resulting in a strong, savory flavor. It is often used to enhance the taste of various dishes, adding depth and umami. This condiment is commonly served with mangoes or used as an ingredient in recipes like pinakbet and sinigang. Bagoong isda is a staple in many Filipino households, reflecting the country's rich culinary heritage and love for bold flavors.