There’s a good chance that the olive oil in your cupboard isn’t pure olive oil

Olive oil is filtered in an oil mill in a farm near Evora, in the Portuguese region of the Alentejo. (AP Photo/Francisco Seco)

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Olive oil is loaded with health benefits — it has antioxidants and anti-inflammatory properties, and has been proven to fight cancer, type 2 diabetes, depression, and Alzheimer’s disease.

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But be careful next time you go to the grocery store for a bottle of the good stuff. The olive oil in your cart, cupboard, or pantry may actually be a blend of several types of oil.

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