The Tuna Belly in Olive Oil Rosa Lafuente is a high-quality product that reflects the tradition and century-old expertise of the Rosa Lafuente brand. Made from the juiciest part of the tuna, this belly is presented in hand-crafted fillets covered in a smooth olive oil. The raw materials come from the fishing grounds in Galicia, especially from the Ría de Arousa, known for its marine richness. These preserves exemplify excellence in the hand-packing process, without adding any chemicals.