Alliin is a sulfoxide compound, a naturally occurring substance found in garlic. It is a derivative of the amino acid cysteine. While alliin itself doesn't have a strong odor, it is the precursor to allicin, the compound responsible for garlic's characteristic pungent smell and many of its health benefits.
When you chop or crush garlic, the enzyme alliinase comes into contact with alliin and converts it into allicin. This reaction is what gives freshly crushed garlic its strong smell. Allicin is unstable and breaks down into other sulfur-containing compounds over time, which is why garlic loses its pungency as it sits.
Alliin has been linked to several potential health benefits, including:
- Reducing inflammation: Studies have shown that alliin may help reduce inflammation in the body, which may be beneficial for conditions like arthritis and heart disease.
- Lowering blood pressure: Some studies suggest that alliin may help lower blood pressure by relaxing blood vessels.
- Boosting the immune system: Alliin may help boost the immune system by increasing the production of white blood cells.
- Fighting cancer: Some research suggests that alliin may have anti-cancer properties.
It is important to note that most of the research on the health benefits of alliin has been done in test tubes or animals. More research is needed to confirm these benefits in humans.
Alliin is generally safe for most people to consume in the amounts found in food. However, some people may experience side effects such as heartburn, gas, and diarrhea. If you experience any of these side effects, it is best to reduce your intake of garlic.
Pregnant and breastfeeding women should talk to their doctor before taking garlic supplements, as high doses may be harmful.