Metabolic Dietary supplement

Aged Garlic Extract (Kyolic)

Kyolic · AGE Garlic

Evidence: Studied in humans. Example dose: finalize with a provider. Not a fact-check stamp.

1,200-2,400mg AGE daily – 1200-2400 mg Oral Split 1-2x daily

Aged Garlic Extract (AGE) is produced by aging fresh garlic (Allium sativum) in 15-20% ethanol for 18-20 months under controlled conditions. This aging process converts the harsh, pungent allicin (responsible for fresh garlic's smell and GI irritation) into stable, water-soluble organosulfur compounds - primarily S-allyl cysteine (SAC), S-allyl mercaptocysteine (SAMC), and various sulfides. The result is an odorless, non-irritating, more bioavailable form of garlic with significantly enhanced cardiovascular research base.

Quick Start

Route

Oral

Start low

1,200-2,400mg Oral

Frequency

Split 1-2x daily

Timing

Anytime

Take with meals (improves tolerability and absorption). Split dosing (1,200mg AM + 1,200mg PM) is the LANCER trial protocol. AGE is odorless - no garlic breath unlike fresh garlic. Effects develop over 6-12 months for cardiac outcomes.

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Start here. Every protocol below is ordered lowest-first. Begin at the smallest effective dose, hold about a week to assess tolerance, and step up only if needed.

Tiered Protocols · lowest first

Conservative start

1,200-2,400mg AGE daily · Oral · Split 1-2x daily

conservative starter

1,200-2,400mg AGE daily

Split 1-2x daily

Standard

Cardiovascular Defense

1200-2400 mg · Oral · Daily

human clinical trial · Matsumoto et al. 2016 (J Nutr)

High tolerability. Take with food.

1200-2400 mg

Daily

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How it works

S-allyl cysteine (SAC) is the primary bioavailable active component of AGE. SAC supports nitric oxide bioavailability (improving endothelial function and vasodilation), inhibits ACE (angiotensin-converting enzyme - similar to ACE inhibitor BP medications, though weaker), and provides antioxidant activity.

Plaque modulation: AGE may slow progression of coronary artery calcification (CAC) and promote regression of unstable, lipid-rich heterogeneous plaque. Mechanisms include endothelial protection, anti-inflammatory effects, and reduced LDL oxidation. The LARRY (Los Angeles Atherosclerosis) trials and subsequent LANCER trial demonstrated reduced CAC progression with AGE.

BP reduction: Mild ACE inhibition + improved NO availability + reduced oxidative stress in vasculature contribute to modest BP reduction (~5-10 mmHg systolic in hypertensive individuals).

Antioxidant: AGE contains potent antioxidants that reduce LDL oxidation (the atherogenic form of LDL) and protect endothelium from oxidative damage.

Anti-inflammatory: Reduces inflammatory markers (CRP, IL-6, TNF-alpha) relevant to atherosclerosis progression.

Platelet function: Modest antiplatelet effect (mild reduction in platelet aggregation) - contributes to cardiovascular benefit but rare bleeding risk at typical doses.

Lipid modulation: Modest reductions in total cholesterol, LDL, and triglycerides (effect smaller than statins or BPF).

Immune support: AGE enhances NK cell activity, T-cell function, and macrophage activity. May reduce cold/flu duration.

What to expect

Early

Days 1–7

Weeks 1-4: Immune support, subtle BP changes.

Evidence

HumanPresent

AnimalPresent

In-vitroPresent

Each reference below was re-fetched from its PubMed record, and the quoted sentence was confirmed to appear in that abstract and to support the claim it sits under. Follow any of them to read the source.

Dose/route: 1.2 g aged garlic extract orally each day for 12 weeks was tested, matching the low end of the card’s 1,200-2,400 mg/day range.

A total of 88 general practice patients and community members with uncontrolled hypertension completed a double-blind randomized placebo-controlled trial of 12 weeks investigating the effect of daily intake of aged garlic extract (1.2 g containing 1.2 mg S-allylcysteine) or placebo on blood pressure, and secondary outcome measures of central-hemodynamics and other cardiovascular markers, including cholesterol, homocysteine, platelet function, and inflammatory markers.

The effect of aged garlic extract on blood pressure and other cardiovascular risk factors in uncontrolled hypertensives: the AGE at Heart trial. Integrated blood pressure control · 2016 · PMID 26869811

Evidence scope. Human, patients with uncontrolled hypertension (disease-specific); oral, 1.2 g/day, 12 weeks.

Primary safety concern: aged garlic extract was highly tolerable and did not increase bleeding risk in participants taking blood-thinning medication.

Aged garlic extract was highly tolerable and acceptable, and did not increase the risk of bleeding in patients on blood-thinning medication.

Evidence scope. Human, hypertensive patients, subgroup on blood-thinning medication; oral.

Dose/effect: a meta-analysis found significant blood-pressure effects only above 1,200 mg/day.

The results of this study suggest that AGE supplements may be beneficial for improving blood pressure in hypertensive patients, but significant effects are observed only at doses over 1200 mg/day.

Effects of aged garlic extract on blood pressure in hypertensive patients: A systematic review and meta-analysis of randomized controlled trials. Prostaglandins & other lipid mediators · 2024 · PMID 39437887

Evidence scope. Human meta-analysis of RCTs (9 trials/584 hypertensive patients); oral AGE supplementation; specific brand/formulation (e.g. Kyolic) not named in the abstract.

Claims we could not support

No abstract we checked supports these for this molecule at this route. That is not the same as saying they are false — it marks where the evidence is missing.

Specific molecular mechanism for the card’s cardiovascular claims. The checked clinical abstracts support dose, outcomes, and tolerability but do not state a specific causal mechanism.

Interactions & stacking

Two different questions: what is documented about running these together, and what is documented about drawing them into the same syringe. A good pharmacological partner can still have to be pinned separately.

Documented together

StatinsCompatible co-administration. AGE may add modest lipid benefit and protect against statin-related vascular issues.

ACE InhibitorsAGE has mild ACE inhibition - additive but typically well-tolerated. Monitor BP.

CoQ10Both support cardiovascular health via complementary mechanisms - AGE for plaque/BP, CoQ10 for endothelial function and mitochondrial energy.

Omega-3Complementary cardiovascular protection - omega-3 for triglycerides and inflammation, AGE for plaque and BP.

Keep separate

Anticoagulants (warfarin, DOACs, antiplatelets)AGE has mild antiplatelet effect - additive bleeding risk with anticoagulants. Monitor; rare clinical bleeding events but worth noting. Discontinue 7-10 days before surgery.

Saquinavir (HIV protease inhibitor)Garlic compounds significantly reduce saquinavir levels (~50% reduction) via CYP3A4 induction. Avoid combination.

Cyclosporine, TacrolimusTheoretical CYP3A4 induction may reduce levels - monitor if combined.

Hypoglycemic medicationsMild glucose-lowering effect - additive with diabetes medications.

Check any specific pair in the Stack & Interaction Checker, which answers both questions separately. Absence of a documented conflict is not evidence of safety.

Pharmacokinetics

Illustrative plasma concentration · 19 h

Half-life

S-allyl cysteine: ~10-12 hours plasma. Long enough for once-daily dosing in maintenance.

Peak · Tmax

~2-3 hours

Oral.

Elimination

Plasma clearance 24-48 hours. Cardiovascular effects build over months.

Bioavailability

AGE compounds (especially SAC): ~80-100% absorption. SAC is water-soluble and well-absorbed unlike fat-soluble fresh garlic compounds.

Duration of action

Acute BP effect: 12-24 hours per dose. Chronic plaque/CAC effects: months of consistent dosing required.

Clearance

Hepatic metabolism, urinary excretion of metabolites. Mild CYP3A4 induction.

Storage. Store at room temperature (15-30C) in a cool, dry place. Protect from heat. Capsules and tablets shelf-stable 2-3 years.

Regulatory status

Classified as a dietary supplement in the US - no prescription required. Widely available. Kyolic brand has been on US market since 1955 with extensive safety record. No FDA-approved medical indication.

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The guide & community

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