Garlic para Upper Respiratory Tract Infections

A 12-week randomized controlled trial found the garlic group experienced 63% fewer colds, 70% shorter symptom duration, and significantly fewer viral-challenged days (111 vs 365) compared to placebo. While promising, human clinical trials remain limited.

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Conclusión

Key Study Findings

Other n=80 3 weeks Double-blind

Investigation of the natural supplement IQP-AS-119 for the prevention of upper respiratory tract infections in …

Dose: 20.0% vs: placebo Outcome: None Efecto: or 14 P=0.038

Población: None

Other 17.3 weeks

Protective Effects of AGE and Its Components on Neuroinflammation and Neurodegeneration.

Dose: None vs: None Outcome: None Efecto: None None

Población: Alzheimer's disease patients

Review

Treatment of the common cold in children and adults.

Dose: None vs: None Outcome: infection rate Efecto: None None

Población: None

Review

Chemoprevention of bladder cancer.

Dose: Various nutrients (selenium, vitamins, green tea) vs: None Outcome: Bladder cancer chemoprevention Efecto: None None

Población: Bladder cancer patients

Meta-Analysis

Unsafe and potentially safe herbal therapies.

Dose: None vs: None Outcome: lipid levels Efecto: None None

Población: hypertensive patients

Key Statistics

Estudios

300

Participantes

↑

Positive

Calificación

Referenced Papers

Investigation of the natural supplement IQP-AS-119 for the prevention of upper respiratory tract infections in marathon race participants: A randomized, … Other

Experimental and therapeutic … 2021

Protective Effects of AGE and Its Components on Neuroinflammation and Neurodegeneration. Other

Neuromolecular medicine 2016

Treatment of the common cold in children and adults. Review

American family physician 2012

Chemoprevention of bladder cancer. Review

The Urologic clinics … 2002 20 citas

Unsafe and potentially safe herbal therapies. Meta-Analysis

American journal of … 1999 226 citas

Dosage & Usage

mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units

Dosificaciones de uso común

fresh:: 2-5 g raw garlic/day
general:: 600-1,200 mg aged garlic extract/day

Límite superior: No established UL; high doses may increase bleeding risk

Dosificaciones estudiadas en la investigación

Dosificación	Duración	Efecto	N
20.0%	3 weeks	Mixed	80
None	17.3 weeks	Positive	--
None	--	Mixed	--
Various nutrients (selenium, vitamins, green tea)	--	Positive	--
None	--	Mixed	--

Mejor momento para tomar: With meals to reduce GI discomfort

Safety & Side Effects

Efectos secundarios reportados

⚠ Gastrointestinal discomfort (heartburn, gas, nausea)
⚠ Body and breath odor
⚠ Increased bleeding risk
⚠ Allergic reactions (contact dermatitis, rare)

Interacciones conocidas

● Anticoagulants and antiplatelet drugs (may increase bleeding risk)
● HIV protease inhibitors (saquinavir — may reduce drug levels)
● CYP2E1 substrates (garlic may alter metabolism)
● Isoniazid (may reduce drug absorption)

Ingesta máxima tolerable: No established UL; high doses may increase bleeding risk

Consulte siempre a su profesional de salud antes de comenzar cualquier suplemento.Siempre consulte a su profesional de salud antes de comenzar cualquier suplemento.

Frequently Asked Questions

Does Garlic help with Upper Respiratory Tract Infections?

Based on 3 studies with 300 participants, there is moderate evidence from clinical studies that Garlic may support Upper Respiratory Tract Infections management. Our evidence grade is B (Good Evidence).

How much Garlic should I take for Upper Respiratory Tract Infections?

Studies have used various dosages. A commonly studied range is 2-5 g raw garlic/day. Always consult your healthcare provider before starting any supplement regimen.

Are there side effects of Garlic?

Reported side effects may include Gastrointestinal discomfort (heartburn, gas, nausea), Body and breath odor, Increased bleeding risk, Allergic reactions (contact dermatitis, rare). Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

How strong is the evidence for Garlic and Upper Respiratory Tract Infections?

We rate the evidence as Grade B (Good Evidence). This rating is based on 3 peer-reviewed studies with 300 total participants. The overall direction of effect is positive.

Related Evidence

Otros ingredientes para Upper Respiratory Tract Infections

Vitamin D A Zinc A Beta-Glucan A Vitamin C B Echinacea B Andrographis B

Veredicto rápido

Evidence Strength72%

High confidence

Desglose de estudios

RCT (0)Meta (1)Other (2)

Comparar alternativas

Vea cómo se comparan otros ingredientes para esta condición.

Ver todos los ingredientes para Upper Respiratory Tract Infections

Más información

Aviso legal FDA: Estas declaraciones no han sido evaluadas por la Food and Drug Administration. Los productos y la información en este sitio web no están destinados a diagnosticar, tratar, curar ni prevenir ninguna enfermedad. Las calificaciones de evidencia presentadas se basan en nuestro análisis de investigación publicada revisada por pares y no constituyen consejo médico. Siempre consulte a su profesional de salud antes de comenzar cualquier régimen de suplementos.