Last verified: today
Glutamate
Also known as: L-glutamic acid, monosodium glutamate, MSG, glutamic acid, Glu
Evidence under review. — Not yet rated
Amino acid found in food and the body. Limited human evidence for supplement use; mostly studied in animals.
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What it does
Glutamate is one of the most abundant amino acids in the body and in food, responsible for the savory 'umami' taste in foods like soy sauce and chips. In the body, it plays a central role in brain...
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Evidence quality
Evidence base hasn't been formally rated yet. See research below.
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Clinical dose
No established dose
What the Science Says
Glutamate is one of the most abundant amino acids in the body and in food, responsible for the savory 'umami' taste in foods like soy sauce and chips. In the body, it plays a central role in brain signaling, energy metabolism, and gut function. The provided research suggests it may influence intestinal health markers in fish, and observational data links dietary glutamate intake to hypertension risk in children — but direct human supplementation trials are lacking.
What It Doesn't Do
No proven benefit for muscle building or recovery in humans based on these studies. No evidence it boosts brain performance as a supplement. Don't assume food-level glutamate (MSG) and supplement doses have the same effects. Not shown to treat depression, addiction, or neurological disease directly.
Evidence-Based Benefits
May support goblet cell abundance in the intestinal lining at low dietary levels.
Weak EvidenceEffective at: No established human dose
Higher dietary glutamate intake is linked to increased hypertension risk in children and adolescents.
Weak EvidenceEffective at: No established dose
Absorption & Bioavailability
Unknown from provided studies — animal data suggests intestinal tissue uptake increases with dietary dose, but human absorption data not provided.
Red Flags to Watch For
- Higher dietary glutamate intake was associated with increased hypertension risk in children and adolescents in a large cross-sectional study — long-term high-dose supplementation may carry cardiovascular risk.
- Most research in the provided papers involves animals (fish, rats, mice), not humans — do not extrapolate animal findings to human supplement use.
- Glutamate is a major excitatory neurotransmitter; excess levels are linked to excitotoxicity and neurodegeneration in preclinical models.
- MSG is a regulated food additive — supplement products may not be subject to the same safety oversight or dosing standards.
Research Sources
- PubMed
- NIH DSLD
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-05-25