I would like to ask if blood is good or bad? Are there many benefits or disadvantages?

It seems that I understand that this blood is blood donation.

Donating blood can save lives As the saying goes, saving a life is better than making a living...

As long as it's not a three-day blood donation, it's harmless to the body, don't think of yourself as your own water pipe.

The total blood volume of an adult is about 4000-5000 ml. The weight standard for blood donation is set at 50 kg for men and 45 kg for women. A person donates 200-400 ml of blood at a time, accounting for only 5%-10% of the total blood volume, plus the blood drawn out is the blood of the peripheral blood vessels, the human body will automatically release the blood originally stored in the spleen, liver and other internal organs into the blood vessels, maintain a constant blood volume, and the water and inorganic substances lost after blood donation will be replenished in 1-2 hours; Plasma protein, which can be replenished within a day or two; Platelets, white blood cells, and red blood cells also return to their original levels.

Therefore, blood donation will not affect the health of blood donors. Therefore, healthy people donating blood according to the regulations will not have any effect on the body. After donating blood, the body's hematopoietic tissue will automatically accelerate hematopoiesis, and it can generally return to the original level after half a month.

Appropriate nutrition is increased to provide sufficient raw materials for blood production, and the focus of supplementation is on protein, iron, vitamin B12, folic acid, etc., which are needed for hematopoiesis. It is worth reminding that if you take a lot of tonic and are inactive, it will not be conducive to the digestion and absorption of nutrients, resulting in gastrointestinal dysfunction, and you will gain weight due to excess calories.

High levels of iron in the human blood can significantly increase the risk of heart disease, and donating blood in moderation can greatly reduce the amount of iron in the blood. It will not hurt to donate blood in moderation, protect the puncture hole after donating blood, and properly supplement nutrition.

Pig blood is very nutritious and is known as "liquid meat". According to the determination: every 100 grams of pig blood contains 16 grams of protein, which is higher than the protein content of beef and lean pork, and it is easy to digest and absorb.

Another characteristic of pig blood is that it contains very little fat, only grams per 100 grams, which is 1 70 of the fat content of lean pork, which is a low-calorie and low-fat food. In addition, pig blood contains essential inorganic salts, such as calcium, phosphorus, potassium, sodium, etc., as well as trace elements iron, zinc, copper, and manganese. Pig blood is very rich in iron, up to 45 mg of iron per 100 grams, twice as high as pork liver, 18 times higher than eggs, and 20 times higher than lean meat.

Iron is an important material for hematopoiesis, and the lack of iron in the human body will cause iron deficiency anemia, so anemia patients often eat pig blood can play a role in replenishing blood. Medical research has proved that pig blood contains trace elements such as zinc and copper, which has the effect of improving immune function and anti-aging. Pig blood also contains a certain amount of lecithin, which can inhibit the harmful effects of low-density lipoprotein, help prevent and treat atherosclerosis, and is an ideal food for the elderly and patients with coronary heart disease, hyperlipidemia and cerebrovascular disease, and is also beneficial to the prevention and treatment of Alzheimer's disease, memory loss, forgetfulness, dreaminess, insomnia and other diseases.

Elderly people are susceptible to malnutrition due to tooth loss, difficulty chewing, and decreased digestive function, and food cannot be fully digested and absorbed. Pig blood is soft like tofu, which is very suitable for the elderly. According to the medical records of the motherland, pig blood is "salty and flat in nature, treating headache and dizziness, mid-abdominal distention, noisy stomach and intestines, and cervical erosion", and has a variety of therapeutic uses.

Commonly used dietary remedies such as pig blood crucian carp porridge: 300 grams of pig blood, 100 grams of crucian carp (scales and internal organs), 100 grams of japonica rice, a little white pepper, add an appropriate amount of water, and cook into porridge. Regular use can be ** anemia, neuropathic headache, physical weakness, neurasthenia, insomnia and dreams.

It is worth noting that pig blood is rich in nutrients and can be used as dietary therapy and medicinal diet, but it is necessary to pay attention to hygiene and avoid contamination when collecting pig blood. In addition, the blood of sick pigs should never be eaten.