trustme.bro/r/…
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the claim
NMDA is produced endogenously in the body
the verdict
COMMON KNOWLEDGE
no citation needed for this one
refutedsupported
the weight of evidence
no sources on either side

The existence and endogenous production of NMDA receptors and their endogenous ligands (such as D-serine and D-aspartate) in mammalian bodies are well-established biological facts requiring no citation.

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The analysis

The claim refers to NMDA (or NMDA receptors and their endogenous agonists like D-serine/D-aspartate) being produced or occurring endogenously in the body. While papers like [1], [4], and [11] discuss endogenous D-aspartate and D-serine acting on NMDA receptors, the fundamental premise that the body possesses endogenous components of the NMDA system is a matter of basic biochemical and physiological fact (common knowledge) rather than a contestable hypothesis requiring empirical weighing against refutations.

Everything we examined (12)
We also searched for evidence AGAINST this claim, not only for it.
  1. Armed and dangerous: predicting the presence and function of defensive weaponry in mammalspeer-reviewedno side takennot shown: read and judged not to bear on this claim
  2. New Evidence on the Role of D-Aspartate Metabolism in Regulating Brain and Endocrine System Physiology: From Preclinical Observations to Clinical Applicationspeer-reviewedno side takennot shown: read and judged not to bear on this claim
  3. Stimulation of N-methyl-D-aspartate receptors by exogenous and endogenous ligands improves outcome of brain injurypeer-reviewedno side takennot shown: read and judged not to bear on this claim
  4. Kynurenines and Mitochondrial Disturbances in Multiple Sclerosis.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  5. SLC1A4 and Serine Homeostasis: Implications for Neurodevelopmental and Neurodegenerative Disorders.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  6. Glutamate secretion by embryonic stem cells as an autocrine signal to promote proliferationpeer-reviewedno side takennot shown: read and judged not to bear on this claim
  7. Sp1 mediated the inhibitory effect of glutamate on pulmonary surfactant synthesispeer-reviewedno side takennot shown: read and judged not to bear on this claim
  8. New Pharmacological Treatment Approaches for Schizophrenia: Navigating the Post-iclepertin Landscape.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  9. A comprehensive review on pain: Model, target, therapy, and prospect (Review).peer-reviewedno side takennot shown: read and judged not to bear on this claim
  10. Cell Signaling by Tryptophan Catabolism.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  11. Mammalian Tolerance to Amino Acid Heterochirality.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  12. D-serine: A Multitalented Neuromodulator in Brain Function, Systemic Homeostasis, and Disease.peer-reviewedno side takennot shown: read and judged not to bear on this claim
The paper trail · every fact has a biography
first checked05 Aug 2026
judged → COMMON KNOWLEDGE · 9505 Aug 2026
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