Amino acids are generally better eaten after meals because the sugar content in the human body is higher after meals, and in a hungry state such as before meals, the body tends to convert amino acids into sugar and cannot make full use of the nutritional value of amino acids, which is similar to the reasoning that milk should not be drunk on an empty stomach. Amino acids are essential nutrients that can be obtained from food in general, but if you really need to supplement them, it is recommended that you must use them under the guidance of a professional doctor. The best way to improve your health and resistance is to have a balanced diet, exercise reasonably, don’t overexert yourself, work and rest regularly, and don’t stay up late. In addition, you can usually eat more fresh vegetables and fruits, and eat more protein-rich food.