In general, there is no specific disease for which blackfish should not be eaten. Blackfish is a common, everyday edible fish, a food, and does not have medicinal properties, nor does it have a role in treating specific diseases. There are usually no diseases that require contraindications to blackfish. Blackfish is nutritionally diverse and rich in protein, minerals and vitamins. The protein content is about 18.5g/100g. Minerals calcium, phosphorus content of about 152 mg / 100 grams, 232 mg / 100 grams. And the content of vitamin B3 is not low. Although blackfish in the sick and no contraindication, but still need to pay attention to do not eat more, so as not to aggravate the burden on the stomach and intestines, sick, but also need to pay attention to nutritional balance, scientific diet, avoid stimulating food.