Knowledge

What is the function of serine?

2025-07-16

Serine is a non-essential amino acid, and its role is very important for maintaining overall physical and mental health. It plays a particularly important role in the normal operation of the brain and the central nervous system.
The functions of serine include helping the body form phospholipids needed for cell production. It is also involved in the functions of ribonucleic acid (RNA) and deoxyribonucleic acid (DNA), fat and fatty acid metabolism, muscle formation and maintaining a healthy immune system, etc. The proteins used to form the brain and protect the myelin sheath covering nerves contain serine. Without serine, myelin sheath will be damaged, leading to poor efficiency in transmitting information between the brain and nerve endings, and eventually causing a short circuit in mental function.
The production of tryptophan also requires serine, an amino acid used to make serotonin and a chemical that determines the mood of the brain. It is known that the deficiency of serotonin and tryptophan is associated with problems such as depression, insomnia, mental confusion and anxiety. Studies show that low serine levels can contribute to the development of chronic fatigue syndrome and myalgia.
Serine helps produce immunoglobulins and antibodies and forms a strong immune system. It helps absorb creatine, an amino acid that is beneficial for muscle building.
To ensure the body produces sufficient serine, there must be adequate vitamin B3, vitamin B6 and folic acid. In addition, natural food sources of serine include meat, soy products, dairy products, wheat bran and peanuts, etc. However, modern human diets contain too many processed foods, which lack essential nutrients. Therefore, many people still need to take additional nutritional supplements to make up for the deficiency.
Serine supplements are available in capsule, tablet and powder forms. It can be used as an independent food supplement or combined with other amino acid supplements and sports drinks.