The adulteration of oil can be no more serious than passing off inferior, but safe, product as superior olive oil, but there are no guarantees. It is believed that almost 700 people died in 1981 as a consequence of consuming

The label may indicate that the oil was bottled or packed in a stated country. This does not necessarily mean that the oil was produced there. The origin of the oil may sometimes be marked elsewhere on the label; it may be a mixture of oils from more than one country.[27]
The U.S. Food and Drug Administration permitted a claim on olive oil labels stating: "Limited and not conclusive scientific evidence suggests that eating about two tablespoons (23g) of olive oil daily may reduce the risk of coronary heart disease."[36]
Adulteration[edit]
The adulteration of oil can be no more serious than passing off inferior, but safe, product as superior olive oil, but there are no guarantees. It is believed that almost 700 people died in 1981 as a consequence of consuming rapeseed oil adulterated with aniline intended for use as an industrial lubricant, but sold as olive oil in Spain (see toxic oil syndrome).[37]
There have been allegations that regulation, particularly in Italy and Spain, is extremely lax and corrupt.[38] Major shippers are claimed to routinely adulterate olive oil and that only about 40% of olive oil sold as "extra virgin" in Italy actually meets the specification.[39] In some cases, colza oil (Swedish turnip) with added color and flavor has been labeled and sold as olive oil.[40] This extensive fraud prompted the Italian government to mandate a new labeling law in 2007 for companies selling olive oil, under which every bottle of Italian olive oil would have to declare the farm and press on which it was produced, as well as display a precise breakdown of the oils used, for blended oils.[41] In February 2008, however, EU officials took issue with the new law, stating that under EU rules such labeling should be voluntary rather than compulsory.[42] Under EU rules, olive oil may be sold as Italian even if it only contains a small amount of Italian oil.[41]
Extra Virgin olive oil has strict requirements and is checked for "sensory defects" that include: rancid, fusty, musty, winey (vinegary) and muddy sediment. These defects can occur for different reasons. The most common are:
Raw material (olives) infected or battered
Inadequate harvest, with contact between the olives and soil [43]
In March 2008, 400 Italian police officers conducted "Operation Golden Oil", arresting 23 people and confiscating 85 farms after an investigation revealed a large-scale scheme to relabel oils from other Mediterranean nations as Italian.[44] In April 2008, another operation impounded seven olive oil plants and arrested 40 people in nine provinces of northern and southern Italy for adding chlorophyll to sunflower and soybean oil, and selling it as extra virgin olive oil, both in Italy and abroad; 25,000 liters of the fake oil were seized and prevented from being exported.[45]
On March 15, 2011, the Florence, Italy prosecutor's office, working i