Kelp is delicious and has sufficient iodine content, which has the function of supplementing iodine and clearing away heat. Pig blood has the function of detoxification and dust collection, and also contains nutrients such as protein and iron. However, kelp and pig blood complement each other, which is not conducive to digestion and absorption, leading to constipation.

2. Pig blood cannot be eaten with Polygonum multiflorum Thunb.

Polygonum multiflorum Thunb is a kind of Chinese herbal medicine with good medicinal properties and many medicinal properties. However, it is necessary to pay attention not to take Polygonum multiflorum Thunb after eating pig blood, because pig blood and Polygonum multiflorum Thunb will cause physical discomfort.

3. Pig blood can't be eaten with cornus.

Cornus officinalis is sour in taste and slightly warm in nature, and has the functions of nourishing liver and kidney, astringing essence, consolidating weakness, invigorating stomach and strengthening yang. Traditional Chinese medicine is often used to treat waist and knee pain, tinnitus, nocturnal emission, liver deficiency, cold and heat, sweating, neurasthenia, irregular menstruation and other diseases. But pig blood and dogwood are eaten together, which is not good for health.