Across 133 first-hand reports, people mentioned a side effect 5 times (about 4 per 100 reports). The most common: nausea, headache, garlic smell. User reports show what people notice — they can't tell you whether Garlic is safe for you.
“When I take 2,000 mg garlic in pills..., I can truly focus.”
“I second the garlic recommendation. I started taking it recently and my chronic pain has diminished.”
“I'd take out Garlic and L-Tyrosine because they don't do much (are you taking the garlic for TMAO? it's bunk science)”
“garlic can be a problem for me (i think because of its sulfur content)”
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.
Conclusion: It also can increase the levels of HDL-c and can improve cardiovascular parameters such as coronary artery calcium, microcirculation, epicardial and periaortic adipose tissue, post occlusive reactive hyperemia, low attenuation plaque, carotid intima-media thickness; and carotid intima-media thickness. Due to these reasons, garlic can be considered in the prevention and treatment of CVD risk factors.
Conclusion: We found 28 clinical studies evaluating garlic, turmeric, red peppers, broccoli sprouts, cranberry juice, honey, oils, and probiotics contained in different foods, such as juices, yogurt, and cheese. The existing literature presents a high risk of bias, and results of the same should be evaluated and replicated with precaution; more rigorous clinical studies are lacking.