Garlic vs Vitamin C for immunity
Short answer: For immunity, more users report improvement with Garlic — 100% of 8 reports, versus 90% of 40 for Vitamin C.
Garlic has 142 meta-analyses and 194 randomized trials on PubMed; Vitamin C has 738 and 2,072.
Based on 133 reports about Garlic and 928 about Vitamin C. Not medical advice.
| Garlic Supplement | Vitamin C Supplement | |
|---|---|---|
| Users say it helped | 77%helped40 reports · medium confidence | 64%helped204 reports · high confidence |
| Verdict | Mostly positive | Mostly positive |
| Research | AResearch: Strong | AResearch: Strong |
| Meta-analyses / RCTs | 142 / 194 | 738 / 2,072 |
| Mainly used for | ||
| Immunity % reporting improvement | 100% (8) | 90% (40) |
| Energy % reporting improvement | 100% (2) | 94% (34) |
| Skin & hair % reporting improvement | — | 97% (29) |
| Mood % reporting improvement | — | 88% (25) |
| Heart & lipids % reporting improvement | 95% (19) | 75% (4) |
| Common side effects | nausea, headache, garlic smell, constipation | kidney stones, stomach issues, insomnia, bone pain |
| Typical dose reported | 500 mg / 2x daily | 2000 mg / daily |
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 ↗“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.”
The failure of vitamin C supplementation to reduce the incidence of colds in the general population indicates that routine vitamin C supplementation is not justified, yet vitamin C may be useful for people exposed to brief periods of severe physical exercise. Regular supplementation trials have shown that vitamin C reduces the duration of colds, but this was not replicated in the few therapeutic trials that have been carried out. Nevertheless, given the consistent effect of vitamin C on the duration and severity of colds in the regular supplementation studies, and the low cost and safety, it m
Cochrane Database Syst Rev, 2013 ↗“I know people say you get enough vitamin C from diet but I feel and look better when I supplement it.”
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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