L-serine
Synopsis
L-Serine is a non-essential amino acid, meaning the body can synthesize it, but it is still critical for numerous biological functions, especially those involving the nervous system, brain, muscles, and immune health. It serves as a building block for proteins and enzymes, a precursor to other amino acids (like glycine and cysteine), and a vital component in cellular membranes through the production of phosphatidylserine—a phospholipid essential for brain function.
Key physiological functions:
- Supports brain development and function by contributing to neuronal signaling and the synthesis of neurotransmitters and phospholipids
- Aids in the formation of DNA and RNA
- Acts as a precursor to glycine, cysteine, sphingolipids, and serine-derived lipids
- Plays a role in immune cell proliferation and muscle metabolism
- Contributes to the synthesis of glutathione, a key antioxidant
L-Serine is found naturally in:
- Eggs, soy products, meat, dairy, legumes, and nuts
- Protein-rich foods, where it exists as part of larger protein structures
Health benefits and uses:
- Supports cognitive function, memory, and neural development
- Used in therapeutic protocols for neurodegenerative disorders, including ALS, Alzheimer's, and multiple sclerosis
- May help reduce neuropathic pain and support nerve repair
- Enhances immune response in conditions of stress or infection
- Helps with muscle growth and tissue repair, especially post-exercise
Supplemental forms:
- Available as free-form amino acid in powder or capsule form
- Sometimes combined with phosphatidylserine or other neuro-supportive nutrients
Scientific and Therapeutic Context:
L-Serine has attracted attention in recent years for its role in neurological health, with studies exploring its potential in slowing cognitive decline and neurodegeneration. Research has shown that L-serine levels may be depleted in certain neurological disorders, and supplementation has demonstrated promising effects on neuronal survival and inflammation control.
While L-serine itself was identified and synthesized in the 19th century, its natural role aligns with traditional diets rich in collagen, organ meats, and legumes, all of which provide serine and its metabolic co-factors.
Today, L-serine is widely used in clinical nutrition, cognitive support supplements, and sports recovery formulas, appreciated for its role in neuroprotection, cell membrane health, and amino acid metabolism.
Body Systems
Brain (Science)
Muscles (Science)
Mitochondria (Science)
Parasympathetic Nervous System (Science)
Sympathetic Nervous System (Science)
Products containing this ingredient
Pure Encapsulations
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Homocysteine Supreme™
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Klean Athlete
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Douglas Laboratories
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