It may not smell like a lily, but Garlic (Allium sativum) is an edible bulb from the lily family. Fondly known to herbalists as “the stinking rose,” for centuries, there has been many traditional medicine uses for Garlic, including treatment of skin conditions, immune support, antimicrobial and, to reduce risk for cancer and heart disease. Scientists say it’s the chemicals that give garlic its pungent odor that are the source of the herb’s heart health-promoting effects.
Garlic is one of the most widely studied herbal supplements for its beneficial effects on the heart. It is rich in the allicin, alliin, and ajoene—antioxidant compounds that help reduce the risk for cardiovascular disease. Garlic contains several vitamins and minerals that support heart health, including vitamin B6, vitamin C, manganese, and selenium.
Studies on garlic and the cardiovascular system typically use garlic powder, oil, or aged extracts. Effects of garlic on the heart that are supported by science include:
- Slows the development of atherosclerosis (hardening of the arteries)
- Reduces blood pressure
- Reduces triglycerides and therefore lowers total cholesterol
The amount of active compounds supplied by garlic supplements can vary because it’s active compounds are very sensitive to things such as air and heat. Although generally safe for most adults, taking a garlic supplement can cause heartburn, upset stomach, an allergic reaction, and breath and body odor (common with raw garlic). Garlic should not be taken by persons who are preparing for surgery or who have bleeding disorders because it can impair the body’s ability to form blood clots. So, it’s important to get standardized garlic supplements from a qualified holistic health practitioner.
World’s Healthiest Foods: Garlic. http://www.whfoods.com/genpage.php?tname=foodspice&dbid=60
National Center for Complementary and Integrative Health. Garlic. https://nccih.nih.gov/health/garlic/ataglance.htm
Medline Plus. Herbs and Supplements: Garlic. (Includes information on garlic interactions with other drugs) https://www.nlm.nih.gov/medlineplus/druginfo/natural/300.html
Karagodin VP, Sobenin IA, Orekhov AN. Antiatherosclerotic and Cardioprotective Effects of Time-Released Garlic Powder Pills. Curr Pharm Des. 2015 Nov 12. Available from: http://www.eurekaselect.com/136921/article
Seki, T. and Hosono, T. Prevention of Cardiovascular Diseases by Garlic-Derived Sulfur Compounds. Jnl of Nutritional Science & Vitaminology (Tokyo). 2015. 61 Suppl:S83-85. doi: 10.3177/jnsv.61.S83. Date Accessed: Dec 8, 2015. https://www.jstage.jst.go.jp/article/jnsv/61/Supplement/61_S83/_pdf
Xiong, XJ., Wang, PQ, et al., Garlic for hypertension: A systematic review and meta-analysis of randomized controlled trials. Phytomedicine. 2015 Mar 15;22(3):352-61. doi: 10.1016/j.phymed.2014.12.013. http://www.ncbi.nlm.nih.gov/pubmed/25837272