Olive oil is naturally non-GMO. How is that possible? This is because there are no varietals available in the world today that are produced using genetic engineering. Therefore, all of the olive oil out there is going to be non-GMO — without evening trying.
Because olive oil is considered a low risk ingredient. A low risk ingredient is anything that is naturally non-GMO and therefore has no risk of cross-contamination with other GMO varieties. This means that they can skip the lengthy paperwork process and just sign off on the fact that the oil is low-risk to begin with