Fish is rich in protein and other nutrients, high nutritional value, generally less spiny, tender fish are more suitable for the elderly to eat. Elderly people eat fish and no contraindications, the market fish can be eaten. Fish protein is relatively rich, but also contains vitamins and minerals, can be supplemented for the elderly daily needs of nutrition. For example, the sea carp, per 100g of energy 857KJ, protein content of 17.0g, also contains calcium 69mg, phosphorus 193mg, potassium 133mg and other rich nutrients, the elderly can be in the daily diet, appropriate to eat some. Other daily more common cod, perch, blackfish and other nutrients are also relatively rich, and less fish thorns, delicious flavor, are also more suitable for the elderly to eat. What the elderly eat fish is not limited, reasonable with the diet, helps to balance the nutrition. People who are allergic to fish should not eat fish.