The main nutrients in animal blood are protein and iron.
In many developing countries where there is a shortage of substances, malnutrition caused by protein deficiency is common. Compared with meat that ordinary people cannot afford, animal blood is a source of protein with extremely high cost performance, both in quantity and quality. Protein from animal blood can be used as a source of high-quality protein.
Each hemoglobin molecule contains four ferrous ions. Blood is the iron bank of animals. Iron in animal blood exists in the form of heme iron, which is easier to be absorbed by human body than ordinary iron ions. Animal blood can effectively prevent and treat iron deficiency anemia for people who may lack iron, such as children at the development stage, pregnant women and lactation women.
Is it better for animals to eat more blood?
No.
The main nutritional value of animal blood lies in protein and iron, but excessive amounts of these two substances are not good for human body.
The recommended daily intake of protein for ordinary healthy adults is 60 g for men and 50 g for women. Excessive intake of protein can no longer be absorbed and utilized by the human body, but will become firewood for energy generation and even be converted into fat. Not only will it cause waste of nutrition, but it will also increase the burden on the liver and kidney.
Healthy people do not need special iron supplements. 95% of the iron needed by the human body comes from hemoglobin decomposed by aging red blood cells. Only 5% is taken from food. The recommended daily intake of iron is about 10 mg, which can be satisfied by a balanced diet. The human body has a strong storage capacity for iron, but its metabolic capacity is limited. Short-term intake of large amounts of iron will not cause discomfort. Long-term high-iron diet will lead to iron overload in the human body, which will eventually develop into hemoglobin, damaging cells in liver, kidney, mucous membrane and skin.
Is the toxin in animal blood harmful to the body?
Some people think that there are toxins metabolized by animals in animal blood, which will threaten human health. This statement has some truth, but it exaggerates the facts.
Blood is only a porter of metabolites produced by cells throughout the body. Each time it passes through the liver and kidney, these metabolites are filtered or converted into other substances. The content of metabolites in blood is not of the same order of magnitude as that in liver and kidney. Moreover, these metabolites are not equivalent to toxins and are mostly harmless.
What really needs to be worried is that animal blood may be contaminated in the production and transportation links.
Almost all solid ingredients need to be washed before cooking, But the blood is liquid, Can’t clean. From the slaughterhouse to the kitchen, Dust, bacteria and impurities along the way may mix into the blood. At present, the state has strengthened the supervision of eating animal blood. However, there are still many animal blood sold by individual slaughterers on the market. The sanitary conditions in the production and processing process are poor, and even industrial preparations are illegally added. Eating this unclean animal blood may have potential health hazards, so buying animal blood must go to regular vegetable markets or supermarkets.
In short, the nutritional value of animal blood is indeed very high, but it should not be ingested in excess, but should be purchased through regular channels.