The erectile hardness of the penis and the duration of erection are relatively ideal for young people and will decline in older people as they get older. Through dietary therapy to improve the erection of the penis, you can eat more aphrodisiac and high-protein foods, such as fish and shrimp, animal offal, dog meat, beef, mutton, leek, eggs, etc. Eat more fruits, vegetables and fiber-rich foods, and men eat more seafood, can also improve the erection hardness and prolong the duration of the penis. Men usually have to develop good habits, quit smoking, quit drinking, avoid spicy, stimulating food, avoid staying up late and prevent too much tension and anxiety. The frequency of sexual life should not be too high, and there should not be excessive masturbation habits. The effect of food therapy to improve penile erection is limited, if the erection of the penis appears to be dysfunctional it is recommended to seek medical attention in a timely manner to identify the cause and further treatment under the guidance of a doctor.