Taste of Home asserts that leftover shrimp keeps for one to two days in the refrigerator. Eat By Date states that cooked or opened shrimp stays fresh when refrigerated for five to seven days.
Canned shrimp also lasts in the refrigerator for five to seven days. If the shrimp has not been cooked but is unopened and raw, it keeps in the refrigerator for a day or two. In the freezer, raw unopened shrimp keeps for six to eight months.
Shrimp is a high-protein food and is high in iron. Shrimp also contains notable amounts of vitamins C and A.