PlainPill

Garlic vs Zinc for immunity

Short answer: For immunity, more users report improvement with Garlic — 100% of 8 reports, versus 89% of 37 for Zinc.

Garlic has 142 meta-analyses and 194 randomized trials on PubMed; Zinc has 220 and 555.

Based on 133 reports about Garlic and 1,594 about Zinc. Not medical advice.

Garlic
Supplement
Zinc
Supplement
Users say it helped77%helped40 reports · medium confidence59%helped510 reports · high confidence
Verdict
Mostly positive
Mixed
ResearchAResearch: StrongAResearch: Strong
Meta-analyses / RCTs142 / 194220 / 555
Mainly used for
Libido
% reporting improvement
100% (3)90% (120)
Hormones
% reporting improvement
—88% (94)
Sleep
% reporting improvement
—84% (76)
Mood
% reporting improvement
—81% (68)
Energy
% reporting improvement
100% (2)74% (57)
Common side effectsnausea, headache, garlic smell, constipationnausea, stomach issues, vomiting, copper deficiency
Typical dose reported500 mg / 2x daily75 mg
Garlic
Latest review conclusion

Conclusion: There is moderate to high level of evidence from randomized controlled trials that the Ayurvedic herbs guggulu, garlic, and black cumin are moderately effective for reducing hypercholesterolemia. In addition, minimal evidence was found for any side effects associated with these herbs, positioning them as safe adjuvants to conventional treatments.

Medicina (Kaunas), 2021 ↗
What a user said
“For me, it's garlic that works. I use these capsules called Allacin Max, and at the first hint of a cold or a bug I start taking them and the cold never develops into anything.”
Full Garlic profile →
Zinc
Latest review conclusion

Acne patients have decreased serum zinc levels. Zinc is effective for the treatment of acne, particularly at decreasing the number of inflammatory papules, when used as monotherapy or as an adjunctive treatment.

Dermatol Ther, 2020 ↗
What a user said
“I had actual energy in the mornings for the first time I could remember.”
Full Zinc profile →

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Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate