L-serine

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Other names for L-serine

Free-Form L-Serine
Serine Powder
Naturally Occurring Amino Acid
I-serine
l-serine
serine
Serine
serine proteinase

Synopsis of L-serine

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.

L-serine is used for these health conditions

Alzheimer's Disease (Scientific)
Epilepsy (Scientific)
Memory and Brain Function (Scientific)

L-serine is used to support these body systems

Brain (Scientific)
Nerves (Scientific)

Products containing L-serine

Pure Encapsulations Amino-NR
Pure Encapsulations Amino Replete
Metagenics BioPure Protein® Powder
Integrative Therapeutics Detoxication Factors
Integrative Therapeutics Detoxication Factors
Douglas Laboratories Free Form Amino
Designs For Health Homocysteine Supreme™
Designs For Health Homocysteine Supreme™
Klean Athlete Klean Isolate ™
Douglas Laboratories L-Serine
Metagenics Perfect Protein® Pea & Rice Chocolate Powder
Metagenics Perfect Protein Pea & Rice Vanilla Powder
Metagenics Perfect Protein Whey Chocolate
Metagenics Perfect Protein Whey Vanilla
Metagenics Ultra Glucose Control® Chocolate
Metagenics Ultra Glucose Control Chocolate
Metagenics Ultra Glucose Control Vanilla
Metagenics Ultra Glucose Control Vanilla
Metagenics UltraGI Replenish® Chocolate
Metagenics UltraGI Replenish Chocolate
Metagenics UltraGI Replenish Vanilla
Metagenics UltraGI Replenish Vanilla
Metagenics UltraInflamX Plus 360°® Chocolate/Orange
Metagenics UltraInflamX Plus 360° Mango
Metagenics UltraInflamX Plus 360° Mango
Metagenics UltraInflamX Plus 360° Orange
Metagenics UltraInflamX Plus 360° Original Spice
Metagenics UltraInflamX Plus 360° Pineapple/Banana
Metagenics UltraInflamX Plus 360° Pineapple/Banana
Metagenics UltraMeal Advanced Protein® Dutch Chocolate
Metagenics UltraMeal Advanced Protein French Vanilla
Metagenics UltraMeal Advanced Protein Plain
Metagenics UltraMeal Cardio 360°® Pea/Rice Chocolate
Metagenics UltraMeal Cardio 360° Pea/Rice Vanilla

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