✅ A rusty iron nail releases iron into the onion when inserted
✅ Helps increase iron absorption in your diet
✅ Traditionally used to combat iron deficiency & anemia
💡 In some cultures, iron-infused onions were added to soups or broths to naturally boost iron levels!
2. Improves Soil & Boosts Plant Growth 🌱
✅ Onions absorb iron from the rusty nail, making them more nutrient-rich
✅ If you plant the onion, the iron in the soil helps strengthen plants & deter pests
✅ Helps prevent yellowing leaves caused by iron deficiency in soil
💡 Gardeners sometimes bury an iron nail near plants to naturally fertilize the soil!
3. Enhances Onion’s Antibacterial Properties 🦠
✅ Onions are natural disinfectants, and iron may enhance their antimicrobial effects
✅ Used in some folk remedies to treat infections & purify water
✅ A common trick in natural medicine practices
💡 Some believe that placing an iron nail in an onion overnight increases its medicinal benefits!
