Oregano is rich in a host of nutrients, including calcium, magnesium, zinc, iron, potassium, copper, boron, manganese, vitamin C, vitamin A, and niacin, and also seems to be the herb with the highest antioxidant activity. The medicinal parts of this wondrous plant are contained in the oil extracted from the leaves, or from the herb itself picked during the flowering season and eaten fresh or dried. At this writing, the essential oil has been shown to inhibit the growth of at least ten different microbes, including candida (yeast). Not a bad list of accolades, including antifungal; antibacterial, antiparasitic; antimutagenic; anticarcinogenic properties.
Jonny Bowden, PhD, CNS, author of The 150 Healthiest Foods on Earth