Garlic is well-known as a food flavoring, having earned a reputation as a pungent seasoning that can give you bad breath. Garlic has also been used medicinally for several centuries, the University of Maryland Medical Center, or UMMC, reports. Today, garlic is often touted as a remedy for high blood pressure. Another potential use in to lower blood cholesterol levels. However, high cholesterol is a serious medical condition. Never self-treat it with garlic without first consulting with a trusted health practitioner.
Research
Many studies have been done on whether garlic is a reliable treatment for high blood cholesterol levels. Results have been mixed, with some studies showing a benefit but others showing none. Using data collected from only the highest quality and most reliable research to date, it does not appear that garlic has a significant effect on cholesterol levels, MedlinePlus reports. Do not use garlic supplements to lower blood cholesterol levels without first consulting with a health professional who can advise you of potentials risks and benefits.
Active Ingredients
The primary active ingredient in garlic is allicin. This chemical, which also gives garlic its distinctive odor, is produced when garlic is eaten or crushed, the University of Michigan Health System reports. How allicin and other chemicals in garlic works in the body is not fully understood. Because high cholesterol is a serious health condition, you should not self-treat it with garlic without first consulting with a qualified health practitioner.
Dosage
Recommended therapeutic doses for garlic are based on its use in treating high blood pressure. The dose depends on the type of supplement being used. When using garlic extract, the recommended dose is 600 mg to 1,200 mg divided into three daily doses, MedlinePlus reports. Aged garlic extract should be taken in doses of between 600 mg and 7.2 g. Fresh garlic can also be eaten, with a recommended dose of 4 g -- roughly the equivalent of approximately one garlic clove. Before taking garlic supplements to lower cholesterol levels, consult with a knowledgeable health professional about proper dosing.
Side Effects
Garlic supplements are generally regarded as safe when taken at the recommended doses. Possible side effects include bloating, upset stomach, bad breath and strong body odor, the UMMC reports. Handling either aged or fresh garlic can also cause a stinging sensation or skin lesions. In rare cases, garlic can cause side effects, such as dizziness, headaches, fatigue and muscle aches. Do not take garlic supplements without speaking with a medical practitioner who can tell you about potential side effects.
Warnings
While generally regarded as safe, garlic supplements may not be safe for all people. Because it may cause blood to thin, it should not be used by people who have bleeding disorders or who are scheduled to undergo surgery or major dental work, the National Center for Complementary and Alternative Medicine advises. It also may interfere with saquinavir, a drug used to treat people who have HIV.
