1。 Patients with hypercholesterolemia, liver disease, hypertension and coronary heart disease should avoid eating pig blood. 2。 Patients with recent upper gastrointestinal bleeding should avoid eating pig blood. 3。 Patients with gastroptosis, dysentery, diarrhea and other diseases should avoid eating pig blood. 4。 It is forbidden to eat pig blood three days before the scheduled routine stool examination.

It is rich in vitamin B2, vitamin C, protein, iron, phosphorus, calcium, nicotinic acid and other nutrients, and has the functions of improving immune function and resisting aging. It can also detoxify, clear the intestines, replenish blood and beautify.