Are yin-nourishing and aphrodisiac vegetables really so effective?

　　Stewed beef whip, braised dog meat... these "yin-nourishing and yang-nourishing dishes" are favored by many people because of their yin-nourishing and yang-nourishing effects, especially those who have trouble in "that aspect".
　　
　　Experts have different opinions on whether "yin-nourishing and aphrodisiac vegetables" can improve sexual desire. Some people think that there may be active substances in this type of food that dilate blood vessels and can enhance their sensitivity, but no one has come up with data to confirm it.
　　
　　Nutrition experts believe that many people believe that eating cow penis and sheep waist (testicles) can increase male Sexual function, in fact, these muscle tissues are the same as ordinary meat products after being cooked and roasted, but they are just protein.
　　
　　Human sexual function can reflect nutrition and healthy situation.
　　
　　In the novel "Big Breasts and Wide Hips" which reflects life in the 1960s, due to hunger, Impotence There are many men in China, and this was also the case in ancient my country. There were many people who did not have enough to eat, so the ancients used a large amount of protein in Yang-supporting foods, such as mutton, cattle penis, dog meat, sheep kidney, etc.
　　
　　These proteins should have a certain effect on people who are deficient in nutrition and have a weak constitution, especially if they are combined with some nourishing traditional Chinese medicine according to different symptoms, such as "stewed mutton with yam", "stewed bullwhip with wolfberry", "stewed dog meat with cooked aconite", "stewed sheep kidney with cistanche", etc., which are used to assist in the treatment of impotence or discomforts such as soreness of the waist and knees, dizziness and fatigue, etc., which are still passed down to this day and retained in the science of dietotherapy.
　　
　　There are also some foods recorded in ancient medical books, such as shrimp, onions, garlic, leeks, sparrow meat, venison, etc.
　　
　　However, although leeks, known as "Yangcao", have the functions of stabilizing essence, supporting yang, and warming the waist and knees, if you want to achieve obvious effects, you must ensure a certain amount. Eating large amounts for a long time is not good for the body.
　　
　　Of course, it is not ruled out that some people will be effective immediately after eating "yin-nourishing and aphrodisiac vegetables". Most of them are psychological factors at play.
　　
　　Since sexual life has extremely high requirements on psychological factors, normal people can enjoy the pleasure of sexual intercourse as long as they firmly believe that their sexual function is normal, and there is no need to deliberately choose "yin-nourishing and aphrodisiac vegetables".