Chicken of the Sea is well known for its tuna fish. In fact, this company has a number of products available, such as oysters, salmon, shrimp and sardines. Sardines are harvested when they are small and placed in cans which can be stored for long periods of time. These can be used as snacks or in conjunction with an entire meal.

Sardines are packed in various types of liquids. Chicken of the Sea uses mustard sauce, tomato sauce, oil and water. This causes the calorie contents to vary. The sardines packed in water, for example, contain 100 calories per can, while the sardines packed in oil contain 190 calories. A can is equal to 3.75 oz.

Protein and carbs are needed in high amounts by the body for proper functioning. Protein helps repair muscle tissue from workouts, and carbs are used for physical and mental energy. All varieties of Chicken of the Sea sardines have only 2 g of carbs per can. The sardines packed in mustard sauce have the highest protein content with 17 g.

With the exception of the sardines packed in water and oil, all varieties have 490 mg of sodium. Sodium is beneficial for muscle contractions and blood volume regulation in the body. According to Colorado State University, the minimum daily requirement for sodium is 1,500 mg and the maximum recommended level is 2,300 mg.

All types of Chicken of the Sea sardines contain fat. The type packed in oil contains 14 g of total fat and 6 g of saturated fat. On the plus side, sardines also contain a healthy type of unsaturated fat called omega-3. Omega-3 fatty acids decrease triglyceride levels and reduce the build-up of plaque in the arteries, according to the American Heart Association.

Chicken of the Sea sardines contain a number of other nutrients. Sardines in tomato sauce, for example, contain 30 percent of the daily value of calcium, 6 percent of the daily value of iron, 6 percent of vitamin A and 4 percent of vitamin C. The calcium content is high because of the bones in the sardines. According to the National Institutes of Health, calcium is important for muscle contractions, muscle relaxation and blood clotting.