{"id":"6eba26e1-c192-535b-8e0a-e102f7c5ec2f","stable_key":"8f12ba85-1a92-5337-a9c0-9cee9b3be90d:theanine-light-sleep","predicate":"reduces_measured","statement":"The theanine group had reduced light sleep compared with placebo in the trial.","claim_class":"observational","status":"source_derived_draft","evidence_grade":"ungraded","direction":"context_dependent","is_public":true,"mechanism_event_id":"a0dbb9f4-7909-5135-aacc-0278000f3bad","mechanism_event_label":"A decrease in a sleep measure is retained as an observation without automatically calling it better sleep.","subject":{"id":"33a051c5-dba8-53cd-8761-c53732c447e6","slug":"theanine","display_name":"L-Theanine","entity_type_key":"small_molecule"},"object":{"id":"a32124f2-e7e6-50bb-a08d-f212c1632b0f","slug":"light-sleep-duration","display_name":"Device-estimated light sleep duration","entity_type_key":"cellular_process"},"evidence_count":1,"mechanism_event":{"id":"a0dbb9f4-7909-5135-aacc-0278000f3bad","stable_key":"8f12ba85-1a92-5337-a9c0-9cee9b3be90d:theanine-light-sleep-event","event_type":"observed_intervention","label":"A decrease in a sleep measure is retained as an observation without automatically calling it better sleep.","description":"The theanine group had reduced light sleep compared with placebo in the trial.","status":"provisional","compartment":null,"participants":[{"entity":{"id":"33a051c5-dba8-53cd-8761-c53732c447e6","slug":"theanine","display_name":"L-Theanine","entity_type_key":"small_molecule"},"role":"subject","stoichiometry":null,"state_label":"","sequence_order":0,"notes":""},{"entity":{"id":"a32124f2-e7e6-50bb-a08d-f212c1632b0f","slug":"light-sleep-duration","display_name":"Device-estimated light sleep duration","entity_type_key":"cellular_process"},"role":"target","stoichiometry":null,"state_label":"","sequence_order":1,"notes":""}]},"contexts":[{"dimension":"evidence_span","value_text":"{\"source_cache\": \"artifacts/theanine-research/38758503.abstract.txt\", \"locator\": \"Primary indexed abstract; zero-based, end-exclusive Unicode character offsets\", \"file_sha256\": \"aebe7d7493418c65df97e44dd0e07e73f806204c025277f339e4fa99048d13cc\", \"start_char\": 0, \"end_char\": 2433, \"text_sha256\": \"aebe7d7493418c65df97e44dd0e07e73f806204c025277f339e4fa99048d13cc\"}","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"experimental_model","value_text":"Randomized double-blind placebo-controlled trial","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"exposure","value_text":"400 mg/day for 28 days","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"limitations","value_text":"Small sample and several endpoints. Similar within-group stress reductions are not evidence of placebo-controlled superiority; less sleep is not inherently a benefit.","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"nutrient_topic","value_text":"L-Theanine research collection; topical membership is not evidence of a direct dietary effect.","comparator":null,"unit":null,"notes":"","entity":{"slug":"theanine","display_name":"L-Theanine","entity_type_key":"small_molecule"}},{"dimension":"organism","value_text":"30 healthy adults; 15 per group","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"plain_language","value_text":"A decrease in a sleep measure is retained as an observation without automatically calling it better sleep.","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"primary_references","value_text":"[theanine-p38758503] Safety and Efficacy of AlphaWave® L-Theanine Supplementation for 28 Days in Healthy Adults with Moderate Stress: A Randomized, Double-Blind, Placebo-Controlled Trial. (2024). https://pubmed.ncbi.nlm.nih.gov/38758503/ DOI: 10.1007/s40120-024-00624-7","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"tissue_or_cell_type","value_text":"Stress, salivary cortisol and sleep","comparator":null,"unit":null,"notes":"","entity":null}],"evidence":[{"id":"753bf6b0-786c-5140-b39e-3a98d68fd379","evidence_kind":"source_excerpt","locator":"Lines 1225-1236","start_line":1225,"end_line":1236,"excerpt":"### theanine-light-sleep\nThe theanine group had reduced light sleep compared with placebo in the trial.\nCondition category: normal\nnutrient_topic: L-Theanine research collection; topical membership is not evidence of a direct dietary effect.\nplain_language: A decrease in a sleep measure is retained as an observation without automatically calling it better sleep.\norganism: 30 healthy adults; 15 per group\ntissue_or_cell_type: Stress, salivary cortisol and sleep\nexperimental_model: Randomized double-blind placebo-controlled trial\nlimitations: Small sample and several endpoints. Similar within-group stress reductions are not evidence of placebo-controlled superiority; less sleep is not inherently a benefit.\nexposure: 400 mg/day for 28 days\nevidence_span: {\"source_cache\": \"artifacts/theanine-research/38758503.abstract.txt\", \"locator\": \"Primary indexed abstract; zero-based, end-exclusive Unicode character offsets\", \"file_sha256\": \"aebe7d7493418c65df97e44dd0e07e73f806204c025277f339e4fa99048d13cc\", \"start_char\": 0, \"end_char\": 2433, \"text_sha256\": \"aebe7d7493418c65df97e44dd0e07e73f806204c025277f339e4fa99048d13cc\"}\n[theanine-p38758503] Safety and Efficacy of AlphaWave® L-Theanine Supplementation for 28 Days in Healthy Adults with Moderate Stress: A Randomized, Double-Blind, Placebo-Controlled Trial. 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