Olive Oil.

The fat obtained from olives. Used in cooking, cosmetics, medications, lubricants, soaps, oil lamp fuel, and in natural cleaning products.

Unlikely to cause allergic reactions making it the oil base of choice. It does have mild laxative properties. Therefore an overdose may result in diarrhea.

Olive oil is not a human carcinogenic. In fact, it is a factor in helping prevent cancers (breast,colorectal) and in preventing heart attack and stroke.