Tuna is rich in high quality protein, DHA, EPA and many other nutrients. Tuna has a high protein content, and moderate consumption can replenish protein for the body to meet the needs of life activities. Moreover, tuna is also rich in DHA, EPA, unsaturated fatty acids, vitamin B₁₂, vitamin D, calcium, phosphorus and iron and many other substances. There are many kinds of tuna, take yellowfin tuna for example, 100 grams of yellowfin tuna contains 104 calories, of which 23.4 grams of protein, 1.0 grams of fat, 18 micrograms of vitamin A, vitamin E0.5 milligrams, 14.27 milligrams of niacin, 444 milligrams of potassium, 16 milligrams of calcium. Tuna is rich in nutritional value, high food value, suitable for most people to eat, especially suitable for weight loss people, growth and development of children. Although tuna is a healthy food, but consumption should also pay attention to the right amount, allergic people should rule out tuna allergy before consumption.