PlainPill

Garlic vs Vitamin D for immunity

Short answer: For immunity, users rate them about the same: 100% report improvement with Garlic (8 reports) and 98% with Vitamin D (94 reports).

Garlic has 142 meta-analyses and 194 randomized trials on PubMed; Vitamin D has 3,251 and 4,560.

Based on 133 reports about Garlic and 3,058 about Vitamin D. Not medical advice.

Garlic
Supplement
Vitamin D
Supplement
Users say it helped77%helped40 reports · medium confidence67%helped1,101 reports · high confidence
Verdict
Mostly positive
Mostly positive
ResearchAResearch: StrongAResearch: Strong
Meta-analyses / RCTs142 / 1943,251 / 4,560
Mainly used for
Mood
% reporting improvement
—88% (393)
Energy
% reporting improvement
100% (2)87% (255)
Sleep
% reporting improvement
—52% (119)
Immunity
% reporting improvement
100% (8)98% (94)
Anxiety
% reporting improvement
—64% (90)
Common side effectsnausea, headache, garlic smell, constipationinsomnia, anxiety, hypercalcemia, nausea
Typical dose reported500 mg / 2x daily10,000-20,000 IU / daily
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 →
Vitamin D
Latest review conclusion

These results indicate that the prevalence of vitamin D deficiency was more elevated in obese subjects. The vitamin D deficiency was associated with obesity irrespective of age, latitude, cut-offs to define vitamin D deficiency and the Human Development Index of the study location.

Obes Rev, 2015 ↗
What a user said
“First thing I noticed was my mood & libido, I have more 'feeling/sensitivity' down there.”
Full Vitamin D profile →

Related comparisons

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