This archive report was first published on 23 May 2020.
Garlic has been a staple in many cuisines for centuries, but its health benefits extend far beyond its flavor and aroma. According to recent studies, garlic has been proven to protect against heart disease by thinning the blood and helping to lower cholesterol, as well as ward off coughs and colds due to its powerful antimicrobial properties.
So, where do garlic's health benefits actually come from? When cloves are chewed, crushed, or cut, they release a sulphur compound called allicin, which is responsible for garlic's characteristic scent and flavor. This compound is also believed to be responsible for garlic's therapeutic qualities.
Most modern research on garlic focuses on its ability to lower cholesterol and blood pressure, as well as offer protection against strokes and heart disease. Additionally, garlic has been found to help the body fight off infections, with one study in the Antimicrobial Agents and Chemotherapy explaining how allicin is a broad-spectrum antimicrobial capable of warding off different types of infections.
Unlike antibiotics, the body does not appear to build up resistance to garlic, making its positive health benefits continue over time. In fact, a recent study found that a daily intake of garlic reduced the risk of volunteers catching a cold by half, and those who did succumb were more likely to make a speedier recovery than non-garlic-taking volunteers.
Garlic is also a rich source of vitamins A and C, B-complex, and various minerals, including selenium, iodine, potassium, iron, calcium, zinc, and magnesium. For best results, it's essential to eat garlic as soon as possible after peeling, as its potency fades with exposure to light.
However, cooking garlic diminishes most of its healing powers, with microwaving appearing to destroy allicin entirely and eliminate any health benefits. If you can't stand the taste and want to take garlic tablets, be wary of useless supplements, and opt for real allicin products instead.
While some in the medical community remain skeptical, many experts believe that old-fashioned remedies like garlic can provide a powerful no-drug approach to health. However, it's essential to note that garlic can interact with anticoagulants like Warfarin, so consult your doctor before taking supplements, especially if you take blood-thinning medication or aspirin.
Additionally, it's a good idea not to take garlic supplements for two weeks before surgery, as they may interfere with blood clotting and increase the risk of bleeding.