Kaempferol for Health & Longevity - Quick Reference Sheet

Kaempferol for Health & Longevity

Created on 08/05/2026 – Quick Reference based on Evidence Review created using AI4L / Grok 4 Audit

Kaempferol is a common plant flavonol. The strongest human signal sits in long-term eating patterns, not high-dose oral supplements. Higher dietary flavonol intake is linked to lower stroke, cardiovascular, and Alzheimer dementia risk. Short clinical work supports near-term safety at modest doses. Evidence favors flavonol-rich plants over aggressive isolated capsules; drug-interaction questions remain. (Full Review)

Protocol

Dietary flavonol approach
Leafy greens, tea, crucifers, legumes daily
Matches observational exposure pattern
Supplemental low-dose aglycone or plant extracts
~10–50 mg/day aglycone
Published human ranges; no optimal longevity dose
Timing
With meals
Gastrointestinal comfort; food-matrix absorption
Time to effect
Stroke / heart disease / dementia risk
Years of dietary pattern
Observational associations, not capsule days
Exercise oxygen economy
Same day
After single 10 mg dose in athletes
Felt cognition or heart markers
Not reported
Rapid subjective effects not typical

Benefits

Contraindications
  • Pregnancy and lactation at purified supplemental doses (~≥10–50 mg aglycone/day; food-level intake acceptable)
  • Children (no dosing data)
  • Advanced hepatic impairment (Child-Pugh Class B or C)
  • Concurrent narrow-therapeutic-index CYP3A4 drugs without monitoring
  • Known allergy to source plants used in extracts
Key Interactions
  • CYP3A4 substrates (nifedipine, midazolam, cyclosporine, some statins)
  • Other polyphenols and grapefruit constituents
  • Antihypertensive and antiplatelet regimens (e.g., amlodipine, lisinopril, aspirin, clopidogrel)
  • Iron supplements / iron-deficiency treatment
  • Quercetin, fisetin, myricetin combinations
  • Over-the-counter NSAIDs (e.g., ibuprofen) or aspirin with high multi-flavonol loads

Risk & Side Effects

  • High:
  • Medium:
  • Low: Mild, non-specific adverse events at studied oral doses; potential CYP3A4-mediated drug interactions
  • Speculative: Pro-oxidant or genotoxic signals at high in vitro concentrations; reduced iron or folate uptake; unknown high-dose reproductive safety

Monitoring

Marker Target Why
Blood pressure (office or home) ~110–120 / <80 mmHg (individualized) Tracks vascular response if flavonols affect tone
hs-CRP <1.0 mg/L General inflammatory tone
Fasting glucose / HbA1c Glucose 70–90 mg/dL; HbA1c <5.3% Metabolic context for polyphenol use
ALT / AST Within laboratory reference range Baseline if polypharmacy or high-dose botanicals
Complete blood count Age/sex reference Safety net with any new supplement
Serum ferritin ~40–100 ng/mL (context-dependent) Iron stores if high polyphenol intake
Lipid panel (ApoB preferred) ApoB as low as practical for risk tier CVD risk context of flavonol literature

Cadence: If supplementing: safety labs at ~4 weeks, then every 6–12 months or with regimen changes; home blood pressure weekly during the first month. Optional for food-only strategies in healthy adults.

Qualitative Assessment

  • Exercise perceived exertion and interval performance (if used around training)
  • Cognitive clarity and memory in daily tasks (subjective; not a substitute for formal testing)
  • Dietary pattern quality (servings of leafy greens, tea, crucifers)
  • Gastrointestinal comfort and energy stability
  • Medication effect changes (e.g., blood pressure medications, immunosuppressants)