herb · for chronic inflammation
Garlic
Turns down the pathway that drives inflammatory signals in the blood.
Say that in clinical terms
Modulates NF-kB pathway, reducing pro-inflammatory cytokines CRP and IL-6.
How strong is the research?
Solid evidence
Studied in a narrower group
2 papers read, 2 supporting.
Who was studied: Adults who already had high blood pressure, not the general population.
How much to take
daily
600–1200 mg
Reduces CRP and IL-6 markers. Odorless aged garlic formulations preferred.
Before you take it
- No NIH ODS Tolerable Upper Intake Level (UL) established for aged garlic extract as a preparation; most clinical trials use 600–1,200 mg/day without reported serious adverse events at these doses.
- Antiplatelet activity: may potentiate bleeding risk when combined with warfarin, aspirin, or clopidogrel — INR monitoring recommended.
- Significantly reduces plasma saquinavir (HIV protease inhibitor) levels — clinically important drug interaction; concurrent use should generally be avoided.
- Additive blood-pressure-lowering effect with antihypertensive medications; risk of clinically significant hypotension, particularly at higher doses or in susceptible individuals.
- Timing with antibiotics: take at least 2 hours before or 4–6 hours after tetracyclines or fluoroquinolones to avoid absorption interference (NIH ODS guidance; note asymmetry — 2h before vs 4–6h after).
- Common mild adverse effects include halitosis, heartburn, and GI discomfort; aged garlic extract is generally better tolerated for odor than raw garlic or allicin preparations.
What we make of it
The trial measured blood pressure, not inflammation.
The detail
The study we cite is a blood pressure trial in people with hypertension. Its outcomes were systolic and diastolic pressure, not inflammatory markers.