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Garlic at a Glance
Allium sativum is a bulb-forming member of the Amaryllidaceae family and one of the world’s most familiar culinary herbs.
Food and Constituents
When fresh garlic is cut or crushed, enzyme activity produces sulfur-containing compounds associated with its characteristic aroma. Cooking, aging and extraction change that chemistry substantially.
Traditional Use
Garlic has long been valued as food and in traditional wellness practices related to circulation, digestion and seasonal health. These traditions should not be converted into claims that garlic cures infection or cardiovascular disease.
Research
Some human studies of specific garlic preparations show modest reductions in blood pressure or cholesterol. Results vary by preparation and dose, and ordinary culinary garlic is not equivalent to standardized supplements.
Safety
Food amounts are generally well tolerated. Larger medicinal amounts may cause heartburn, odor or digestive upset. Garlic supplements may increase bleeding tendency, especially with anticoagulant or antiplatelet medicines or around surgery. Raw garlic applied directly to skin can cause significant irritation or burns. Pregnancy food use is common; concentrated medicinal dosing should be discussed with a clinician.
Folklore
Garlic is famous in European folk tradition as a protective plant associated with warding, courage and household defense. These are cultural associations.
Bottom Line
Garlic is a valuable food with some preparation-specific clinical research. Culinary use and concentrated supplements should be treated separately. For educational purposes only.