Component
Systemic insulin sensitivity
Context-specific entity; species, compartment and exposure are stated on each claim.
2 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
Five weeks of a six-hour early eating window improved insulin sensitivity without weight loss.
Experimental context and source evidence
- evidence_access
- Primary abstract
- experimental_model
- Controlled crossover in men with prediabetes; dinner before 3 pm versus a 12-hour window.
- limitations
- Early circadian timing and fasting duration were changed together.
- nutrient_topic
- Fasting physiological-state collection; human protocols, cellular deprivation and refeeding are distinguished. · Fasting / abstention from energy intake
- plain_language
- Meal timing can affect glucose control without a multi-day fast.
- primary_references
- Early Time-Restricted Feeding Improves Insulin Sensitivity, Blood Pressure, and Oxidative Stress Even without Weight Loss in Men with Prediabetes. · 2018 · https://pubmed.ncbi.nlm.nih.gov/29754952/ · DOI 10.1016/j.cmet.2018.04.010
Fasting: fuel switching, nutrient sensing, ketone signaling, nutrient dependencies and refeeding (2026-09-18) · lines 424–430
AI-assisted research curation; primary-abstract references and experimental limitations individually identified. Not publisher full text. · supports · Controlled crossover in men with prediabetes; dinner before 3 pm versus a 12-hour window. · source_derived_draft · unverified_draft
## fast-early-window Meal timing can affect glucose control without a multi-day fast. Five weeks of a six-hour early eating window improved insulin sensitivity without weight loss. Model: Controlled crossover in men with prediabetes; dinner before 3 pm versus a 12-hour window. Limitations: Early circadian timing and fasting duration were changed together. Evidence access: Primary abstract Early Time-Restricted Feeding Improves Insulin Sensitivity, Blood Pressure, and Oxidative Stress Even without Weight Loss in Men with Prediabetes. · 2018 · https://pubmed.ncbi.nlm.nih.gov/29754952/ · DOI 10.1016/j.cmet.2018.04.010
Complete structured claim and evidenceGH blockade abolished fasting-induced insulin resistance, mainly through reduced endogenous glucose production.
Experimental context and source evidence
- evidence_access
- Primary abstract
- experimental_model
- Same nine-men protocol, hyperinsulinemic euglycemic clamp.
- limitations
- Acute adaptation during prolonged fasting differs from long-term diabetes outcomes.
- nutrient_topic
- Fasting physiological-state collection; human protocols, cellular deprivation and refeeding are distinguished. · Fasting / abstention from energy intake
- plain_language
- A counterregulatory hormone helped explain glucose sparing in this experiment.
- primary_references
- Substrate Metabolism and Insulin Sensitivity During Fasting in Obese Human Subjects: Impact of GH Blockade. · 2017 · https://pubmed.ncbi.nlm.nih.gov/28324055/ · DOI 10.1210/jc.2016-3835
Fasting: fuel switching, nutrient sensing, ketone signaling, nutrient dependencies and refeeding (2026-09-18) · lines 216–222
AI-assisted research curation; primary-abstract references and experimental limitations individually identified. Not publisher full text. · supports · Same nine-men protocol, hyperinsulinemic euglycemic clamp. · source_derived_draft · unverified_draft
## fast-gh-blockade A counterregulatory hormone helped explain glucose sparing in this experiment. GH blockade abolished fasting-induced insulin resistance, mainly through reduced endogenous glucose production. Model: Same nine-men protocol, hyperinsulinemic euglycemic clamp. Limitations: Acute adaptation during prolonged fasting differs from long-term diabetes outcomes. Evidence access: Primary abstract Substrate Metabolism and Insulin Sensitivity During Fasting in Obese Human Subjects: Impact of GH Blockade. · 2017 · https://pubmed.ncbi.nlm.nih.gov/28324055/ · DOI 10.1210/jc.2016-3835
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.