What Is Garlic?
Garlic is a plant used in cooking and sold in dietary supplements. Supplements can contain powdered, aged, or oil-based garlic preparations. Their ingredients and amounts differ by product.
read more about garlic ...Link to This Resource Page
Provide a valuable resource to your clients or customers by linking to this resource page. Just place the following link on your website.
To display this...
Copy this HTML:
What Is Garlic Used For?
Garlic supplements are promoted for cholesterol, blood pressure, and other health goals. Research suggests some preparations can produce small changes in cholesterol or blood pressure. Garlic supplements are not a replacement for prescribed treatment.
How Does Garlic Work?
Garlic contains sulfur compounds that change when it is crushed or processed. The compounds present in a supplement depend on how it is made. No single mechanism has been established that explains all claimed health effects in people.
How Is Garlic Used?
Garlic can be eaten as part of food or taken as a supplement according to its label. Supplement strengths are not interchangeable, and there is no standard dose for treating a medical condition. Tell a clinician about supplement use before surgery or when reviewing medicines.
What Are Garlic Side Effects and Precautions?
Garlic taken by mouth can cause odor, stomach discomfort, gas, or nausea. Supplements can increase bleeding risk, especially alongside anticoagulants or aspirin. Applying raw garlic to skin can cause severe irritation or burns.
Frequently Asked Questions About Garlic
Can garlic supplements replace blood pressure medicine?
No. Any blood pressure effect shown in studies is small and does not replace prescribed care.
Can garlic increase bleeding risk?
Yes. Discuss supplements with a clinician if you take a blood thinner or aspirin.
Is eating garlic the same as taking a garlic supplement?
No. Supplements can contain concentrated preparations with different ingredients and amounts.
Is raw garlic safe to apply to skin?
Raw garlic can cause skin irritation and chemical burns. Do not use it on the skin to treat a condition without medical advice.
References
Cholesterol-lowering supplements may be helpful. Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/cholesterol-lowering-supplements/art-20050980. Date Accessed October 6, 2026.
Complementary Health Approaches for Hypertension : What the Science Says. National Center for Complementary and Integrative Health. https://www.nccih.nih.gov/health/providers/digest/complementary-health-approaches-for-hypertension-science. Date Accessed October 6, 2026.
Effect of garlic on blood pressure: a systematic review and meta-analysis. PubMed. https://pubmed.ncbi.nlm.nih.gov/18554422/. Date Accessed October 6, 2026.
Garlic: Usefulness and Safety. National Center for Complementary and Integrative Health. https://www.nccih.nih.gov/health/garlic. Date Accessed October 6, 2026.
High Cholesterol and Natural Products: What the Science Says. National Center for Complementary and Integrative Health. https://www.nccih.nih.gov/health/providers/digest/high-cholesterol-and-natural-products-science. Date Accessed October 6, 2026.