1. Protein synthesis
-Arginine is one of the basic building blocks of proteins and participates in the synthesis of proteins in the body.
2.  Precursor of nitric oxide (NO)
-Arginine is converted to nitric oxide (NO) by nitric oxide synthase (NOS), which is an important signaling molecule with the following functions:
-Vasodilation: Helps dilate blood vessels, improve blood circulation, and lower blood pressure.
Cardiovascular health : support cardiac function and prevent atherosclerosis.
3. Immune system support
-Arginine can enhance the function of immune cells such as T cells and macrophages, helping the body resist infections and diseases.
4.  Wound healing 
-Arginine promotes the synthesis of collagen, which helps with tissue repair and wound healing.
5. Hormone secretion
-Arginine is involved in the secretion of various hormones, such as growth hormone (GH) and insulin, and plays an important role in growth, development, and metabolic regulation.
6.   Detoxification function 
-Arginine is a key component of the urea cycle, helping to convert toxic ammonia into urea, which is excreted through urine and protects the liver.
7.  Sports performance
-Arginine may enhance exercise endurance by increasing the production of nitric oxide, improving blood flow and oxygen supply during exercise.

8.  Reproductive health 
-Arginine is particularly important for male reproductive health, as it is one of the main components of sperm and may help improve sperm quality and quantity.
9.  Anti inflammatory effect
-Arginine has a certain anti-inflammatory effect and may have an adjuvant therapeutic effect on chronic inflammatory diseases such as arthritis.
10.  Other potential effects 
-Research shows that arginine may have a certain adjuvant therapeutic effect on diabetes, obesity and some cancers, but more research is needed to confirm it.
Food sources
-Arginine is widely present in high protein foods, such as:
-Meat (red meat, poultry)
-Fish (such as salmon, tuna)
-Nuts (such as walnuts, almonds)
-Beans (such as soybeans and beans)
-Dairy products (such as milk, cheese)
Precautions
-Arginine supplements should be used under the guidance of a doctor, as excessive use may cause gastrointestinal discomfort or other side effects.
-Some populations, such as herpes patients, should avoid excessive intake of arginine as it may promote virus replication.
If arginine supplementation is needed, it is recommended to obtain it through a balanced diet or use supplements under the guidance of a doctor.