Tuna Fish offered is a saltwater fish that belongs to the tribe Thunnini, a subgrouping of the Scombridae family. This fish is a source of high-quality protein with almost no fat. It contains all essential amino acids required by the body for growth and maintenance of lean muscle tissue. This fish can be a good source of heart-healthy omega-3 fatty acids. Tuna Fish is best known for its benefits like heart friendly, lowers blood pressure, improves the immune system, weight loss, strengthens your bones, prevents risk of cancer, and provides energy too. The antioxidants in tuna also help to prevent damage to skin cells from UV exposure.