{"id":"1906d709-cb95-5ef1-be2a-edda52d39de6","stable_key":"561b2b40-5b59-548f-a749-f357f7e2304c:monosodium-glutamate-salt-identity","predicate":"supplies_in_solution","statement":"MSG is the sodium salt of L-glutamate; the sensory study treats added MSG and NaCl as separate ingredients.","claim_class":"mechanistic","status":"source_derived_draft","evidence_grade":"ungraded","direction":"context_dependent","is_public":true,"mechanism_event_id":"ec060b2e-cca2-59aa-9da0-75b62fa495b1","mechanism_event_label":"The ingredient contributes both glutamate and sodium.","subject":{"id":"2952387b-d69b-5530-a976-a875ad008226","slug":"monosodium-glutamate","display_name":"Monosodium L-glutamate","entity_type_key":"small_molecule"},"object":{"id":"7da684a4-2641-5bc6-93ae-8c6aa384e487","slug":"glutamate","display_name":"L-Glutamate","entity_type_key":"small_molecule"},"evidence_count":1,"mechanism_event":{"id":"ec060b2e-cca2-59aa-9da0-75b62fa495b1","stable_key":"561b2b40-5b59-548f-a749-f357f7e2304c:monosodium-glutamate-salt-identity-event","event_type":"observed_relationship","label":"The ingredient contributes both glutamate and sodium.","description":"MSG is the sodium salt of L-glutamate; 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the sensory study treats added MSG and NaCl as separate ingredients.\nModel: Chemical identity and ingredient design in the primary sensory study.\nLimitations: This is background chemistry, not a measurement of absorption or tissue delivery.\nEvidence access: Primary full text; background and test samples\nValidation of preferred salt concentration in soup based on a randomized blinded experiment in multiple regions in Japan-influence of umami (L-glutamate) on saltiness and palatability of low-salt solutions. · 2020 · https://pubmed.ncbi.nlm.nih.gov/31996813/ · DOI 10.1038/s41440-020-0397-1","model_system":"Chemical identity and ingredient design in the primary sensory study.","directness":"reported_statement","verification_status":"source_derived_draft","notes":"Original curation paraphrase; evidence access and experimental limitations specified.","relationship":"supports","weight":1.0,"link_notes":"","source":{"id":"90a81fe5-8622-52f6-b4db-04899206c2b0","stable_key":"import-561b2b40-5b59-548f-a749-f357f7e2304c","title":"Monosodium Glutamate (MSG): taste, gut sensing, exposure and cross-nutrient mechanisms (2026-09-20)","document_type":"imported_text","citation_label":"AI-assisted research curation; 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