Bioevolutionists believe that the substances contained in red meat can increase the size of human brain and gradually distinguish human beings from other herbivorous primates. Robert Picard, a former professor of neurobiology at Cardiff University, explained, "Although the brain only accounts for 2% of human body weight, it needs to absorb nearly 20% of energy, and red meat can provide enough energy."
Resist bacteria
Red meat contains a lot of iron and zinc, which is indispensable for building a healthy immune system. In addition, red meat also provides rich vitamin D and vitamin A, which can help the body effectively fight against germs.
Relieve fatigue
Red meat is the best source of dietary iron, which can help provide hemoglobin needed by human body. According to the British National Diet and Nutrition Survey, more than 50% girls in Britain do not get enough dietary iron, which leads to problems such as fatigue, inattention and developmental retardation.
Dr Elizabeth Lund, a nutrition consultant at the British Institute of Gastrointestinal Health and Food, believes that "iron in red meat is more easily absorbed by people than iron in vegetables or other supplements".
Help exercise muscles.
Red meat is rich in protein, and protein is an important substance for building and repairing human muscles. Creatine in red meat is an important component of muscle, which can provide enough energy for muscle growth.
Dr Carrie Kirsten, a registered dietitian and red meat advisory group, said, "With the increase of age, the number of muscle cells will decrease accordingly, and over time, people's flexibility and hand-foot coordination will also decrease."
Lean meat lowers blood pressure.
Doctors usually advise patients to eat less red meat to lower their blood pressure, but recent research shows that eating lean meat will not adversely affect blood pressure, on the contrary, it can even help people lower their blood pressure.
Lean meat refers to meat without fat, including pork thigh, filet mignon, beef rump and leg of lamb.