What's inside garlic & Onion, and where does it go in your body?
Flavor bombs whose sulfur compounds form when cells are cut — the same chemistry that makes onions sting your eyes.
How the sting works
Cutting an onion releases enzymes that make a volatile sulfur compound; it reaches your eyes and triggers tears.
Evidence
Garlic supplements may modestly lower blood pressure in some trials; evidence for other claims is limited.
Evidence & sources
Garlic supplements may slightly lower blood pressure; evidence on cholesterol is mixed. Evidence: limited. Known: Summarized from clinical trials by NIH. Unknown: Garlic supplements may raise bleeding risk with blood thinners. Source: NIH National Center for Complementary and Integrative Health, Garlic (Current revision).