An odorless, well-tolerated garlic form whose strongest signal is modest blood-pressure lowering, mainly for people whose readings are already above optimal and at higher doses. Smaller studies suggest slowed arterial plaque and calcium buildup and gentle gains in cholesterol, inflammation, and vessel flexibility. Low-risk and plausibly helpful, but not yet shown to prevent heart attacks or extend life. (Full Review)

Protocol

Dose

1,200–2,400 mg/day

Standardized to S-allyl-cysteine; often divided into two doses.

Titration

Start ~600 mg

Begin at one capsule daily, increase toward studied range over 1–2 weeks.

Timing

With meals

Morning and evening splitting common; evening preferred for blood-pressure goals.

Time to effect

Blood pressure

8–12 weeks

Blood-pressure and inflammatory changes emerge with consistent use.

Plaque & calcium

A year or more

Plaque- and calcium-related effects are measured over a year or more.

Benefits

High: Blood pressure reduction

Medium: Slowed progression of coronary plaque and calcium; improved lipid profile; reduced inflammation and oxidative stress

Low: Improved arterial flexibility and endothelial function; immune function support

Speculative: Cancer risk reduction; cognitive and brain aging protection

Contraindications

Known garlic or Allium allergy

Key Interactions

Anticoagulants and antiplatelet drugs (warfarin, apixaban, rivaroxaban, aspirin, clopidogrel)

Antihypertensive drugs (ACE inhibitors such as lisinopril, ARBs such as losartan, calcium channel blockers, diuretics)

Antiplatelet/blood-thinning supplements (fish oil, ginkgo, vitamin E, high-dose nattokinase, ginger)

Additive blood-pressure-lowering supplements (CoQ10, magnesium, potassium, hibiscus, beetroot/nitrate)

Protease inhibitors and certain other medications (e.g., saquinavir)

Risk & Side Effects

High: Mild gastrointestinal discomfort and garlic breath/body odor

Medium: Increased bleeding risk

Low: Allergic reaction; hypotension when combined with antihypertensive drugs

Speculative: Interaction-mediated reduction of certain drug levels

Monitoring

Marker	Target	Why
Blood pressure	<120/80 mmHg	Primary trackable benefit of AGE
LDL cholesterol	<100 mg/dL (lower if high-risk)	Tracks lipid effect
HDL cholesterol	>50 mg/dL (women), >40 mg/dL (men)	May rise modestly with AGE
Triglycerides	<90 mg/dL	Responsive to garlic
High-sensitivity C-reactive protein (hs-CRP)	<1.0 mg/L	Tracks anti-inflammatory effect
Homocysteine	<9 µmol/L	Lowered in AGE-plus-B-vitamin trials

Cadence: Blood pressure at 8–12 weeks; lipids and inflammatory markers at ~3 months, then every 6–12 months for long-term use.

Qualitative Assessment

Energy and exercise tolerance: subjective stamina and recovery
Lightheadedness or dizziness: a signal of excessive blood-pressure lowering
Digestive comfort: presence or absence of bloating, heartburn, or odor

Aged Garlic Extract for Health & Longevity

Protocol

Benefits

Risk & Side Effects

Monitoring

Qualitative Assessment