What is the recommended dosage for Garlic?

Fresh Garlic: 2-5g/day (1-2 cloves); Aged Garlic Extract: 600-1,200 mg/day; Allicin Standardized: 300-600 mg/day (5-12 mg allicin)

What are the side effects of Garlic?

Potential side effects include: Body odor and bad breath (less with AGE), Gastrointestinal discomfort (heartburn, nausea, gas), Increased bleeding risk, Allergic reactions (rare).

What is garlic and how may it support cardiovascular health?

Garlic (Allium sativum) contains allicin and other sulfur compounds with antioxidant and anti-inflammatory properties. Meta-analyses show garlic supplementation may modestly reduce blood pressure (by approximately 5–8 mmHg systolic) and total cholesterol. Aged garlic extract has the most consistent clinical evidence.

What dosage of garlic has been studied for cardiovascular benefits?

Clinical trials have used 600–2,400 mg of aged garlic extract per day, or garlic powder at 600–900 mg daily. Kyolic aged garlic extract is the most commonly studied branded form. Studies lasted 4–24 weeks. Fresh garlic equivalent doses are approximately 4 grams (1 clove) daily.

What are the potential side effects of garlic supplements?

Common side effects include garlic breath, body odor, heartburn, and digestive upset. Garlic has antiplatelet effects and may increase bleeding risk, particularly with anticoagulants, aspirin, and NSAIDs. Discontinue garlic supplements at least 7 days before surgery. Aged garlic extract may cause fewer GI side effects than raw garlic.

Garlic
Garlic

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Também conhecido como: Aged Garlic Extract (AGE), Kyolic, Allium sativum, Allicin, S-Allylcysteine

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About

Garlic, particularly aged garlic extract (AGE), has extensive evidence for blood pressure reduction. A 2020 meta-analysis of 12 RCTs found garlic reduced systolic blood pressure by 8.3 mmHg — comparable to first-line antihypertensives. The AGE at Heart trial showed 2,400 mg/day AGE reduced coronary artery calcium progression by 80% in 65 firefighters over 1 year.

How It Works

Allicin and S-allylcysteine (SAC) in aged garlic extract inhibit HMG-CoA reductase and cholesterol synthesis; enhance hydrogen sulfide (H2S) production promoting vasodilation; inhibit ACE and calcium channel activity reducing blood pressure; polysulfides activate TRPA1 channels on sensory nerves causing vasorelaxation; reduce platelet aggregation; antioxidant effects reduce ox-LDL formation.

Evidence For Conditions

Condição	Nota	Estudos	Participantes
High Blood Pressure (Hypertension)	A	12	550	Ver →

Side Effects

Body odor and bad breath (less with AGE)
Gastrointestinal discomfort (heartburn, nausea, gas)
Increased bleeding risk
Allergic reactions (rare)

Drug & Supplement Interactions

Anticoagulants (increased bleeding risk — discontinue 7 days before surgery)
Antiplatelet drugs (additive antiplatelet effect)
HIV protease inhibitors (saquinavir — reduced levels)
CYP3A4 substrates (may alter metabolism)
Blood pressure medications (additive hypotensive effect)

Informe sempre o seu profissional de saúde sobre todos os suplementos que você toma.Sempre informe seu profissional de saúde sobre todos os suplementos que você toma.

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Dados Rápidos

Dosagem: Fresh_Garlic: 2-5g/day (1-2 cloves); Aged_Garlic_Extract: 600-1,200 mg/day; Allicin_Standardized: 300-600 mg/day (5-12 mg allicin)
Formas: capsule (aged extract) tablet softgel (oil) raw cloves powder
Fontes Naturais: Garlic cloves (fresh, aged, fermented)
Limite Superior: Not formally established; GI discomfort and body odor limit high doses
Melhor Horário: With meals to reduce GI side effects; enteric-coated tablets for allicin delivery

Resumo das Evidências

High Blood Pressure (Hypertension) A

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Aviso Legal da FDA: Estas declarações não foram avaliadas pela Food and Drug Administration. Os produtos e informações neste site não se destinam a diagnosticar, tratar, curar ou prevenir qualquer doença. As notas de evidência apresentadas são baseadas em nossa análise de pesquisas revisadas por pares publicadas e não constituem aconselhamento médico. Sempre consulte seu profissional de saúde antes de iniciar qualquer regime de suplementação.