Component
Urinary amino acid excretion
Urinary amino acid excretion. Species, exposure and limitations are retained in each linked claim.
1 recorded relationships. Experimental role, claim status and evidence remain attached to each record.
How nutrients influence it
Every nutrient with a recorded effect on this component, credited to the nutrient that acted rather than the chapter that recorded it. Open a nutrient to see the findings and the conditions they were measured under.
Other things that act on it
Enzymes, hormones, genes, and other components with a recorded effect. These are not nutrients, so they do not count toward the arrows above. Each finding names the chapter that recorded it.
How nutrients reach it in more than one step
Chains of two or more recorded steps that end here, grouped by the nutrient they start from. Each step is a separate finding, so a chain is a route a mechanism could take, not proof that it does.
Tracing routes…
What it does
Every recorded relationship this component is part of, grouped by its role. Plain wording comes first; the technical statement follows.
What acts on it
Urinary glutamate, aspartate and several other amino acids increased during the theanine visit.
Experimental context and source evidence
- evidence_span
- {"source_cache": "artifacts/theanine-research/41845544.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "c52235640bebf5a00b45b96dd1af1bf1c6cc102cef6a1707711314f870b08e34", "start_char": 0, "end_char": 1980, "text_sha256": "c52235640bebf5a00b45b96dd1af1bf1c6cc102cef6a1707711314f870b08e34"}
- experimental_model
- Fixed-sequence two-period oral glucose tolerance study
- exposure
- 300 mg theanine 15 minutes before OGTT; untreated visit always first
- limitations
- Not a randomized treatment order. Primary glucose endpoint was negative; urinary glucose and sodium trends were not statistically significant.
- nutrient_topic
- L-Theanine research collection; topical membership is not evidence of a direct dietary effect. · L-Theanine
- organism
- 39 healthy humans
- plain_language
- A urinary change does not by itself establish nutritional deficiency or tissue depletion.
- primary_references
- [theanine-p41845544] Clinical assessment of blood glucose responses to 300-mg dose of L-theanine, an amino acid unique to green tea, in a fixed-sequence, two-period trial. (2026). https://pubmed.ncbi.nlm.nih.gov/41845544/ DOI: 10.1186/s40780-026-00562-6
- tissue_or_cell_type
- Blood glucose and urinary solutes
L-Theanine: metabolism, neural signaling, nutrient connections and human outcomes (2026-09-17) · lines 1251–1262
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Fixed-sequence two-period oral glucose tolerance study · source_derived_draft · unverified_draft
### theanine-urinary-amino-acids Urinary glutamate, aspartate and several other amino acids increased during the theanine visit. Condition category: normal nutrient_topic: L-Theanine research collection; topical membership is not evidence of a direct dietary effect. plain_language: A urinary change does not by itself establish nutritional deficiency or tissue depletion. organism: 39 healthy humans tissue_or_cell_type: Blood glucose and urinary solutes experimental_model: Fixed-sequence two-period oral glucose tolerance study limitations: Not a randomized treatment order. Primary glucose endpoint was negative; urinary glucose and sodium trends were not statistically significant. exposure: 300 mg theanine 15 minutes before OGTT; untreated visit always first evidence_span: {"source_cache": "artifacts/theanine-research/41845544.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "c52235640bebf5a00b45b96dd1af1bf1c6cc102cef6a1707711314f870b08e34", "start_char": 0, "end_char": 1980, "text_sha256": "c52235640bebf5a00b45b96dd1af1bf1c6cc102cef6a1707711314f870b08e34"} [theanine-p41845544] Clinical assessment of blood glucose responses to 300-mg dose of L-theanine, an amino acid unique to green tea, in a fixed-sequence, two-period trial. (2026). https://pubmed.ncbi.nlm.nih.gov/41845544/ DOI: 10.1186/s40780-026-00562-6
Complete structured claim and evidence
The events it takes part in
A mechanism often involves more than two components. These are the full events, with every participant and its role.
Situations it appears in
Low-supply and faulty-machinery situations recorded in the chapters where this component plays a part.
In the sources
Preserved passages that mention this component, quoted exactly. Open one to read it in context.
Open hypotheses
Proposed ideas that involve this component. They are labeled as hypotheses and do not change any recorded statement.
This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.