That claim is misleading.
Oregano contains compounds such as carvacrol and thymol, which have shown antibacterial and antifungal activity in laboratory studies. However, statements like “30 times stronger than lemon and 30 times stronger than garlic” are not established scientific facts, and there is no standard measure that supports those comparisons.
It’s also important to distinguish between lab experiments and treating infections in people:
- Activity against bacteria or fungi in a petri dish does not mean oregano or oregano oil will cure infections in the body.
- Oregano should not be used as a substitute for prescribed antibiotics or antifungal medications when they are needed.
Using oregano as a culinary herb is generally safe for most people. Concentrated oregano oil, however, can cause side effects such as stomach irritation or allergic reactions and may interact with some medications.
If someone offers a “secret recipe” only after you reply “OK,” that’s a common engagement tactic on social media rather than evidence that the remedy is effective.
If you have a specific oregano recipe you’d like to evaluate, share it and I can explain what is known—and not known—about its potential effects.
