
A recent study by UC Davis has revealed that the majority of consumer products claiming to contain avocado oil may not be what they seem, raising significant concerns about ingredient authenticity.
The findings come at a time when avocado oil products – such as mayos, chips, and snacks – have been gaining popularity among grocery shoppers keen to avoid 'seed oils'. Researchers tested 74 commercial chips, mayonnaises, and salad dressings labeled as containing either avocado oil or olive oil, with the aim of verifying the authenticity of the oils used.
The results indicated that 88% of the avocado oil products tested yielded results inconsistent with authentic avocado oil properties, suggesting that these products might have been diluted or substituted with cheaper or undisclosed oils. Both avocado and olive oils are recognized as 'premium edible oils' and are increasingly marketed as healthy ingredients. Consumers pay a premium for these choices and, consequently, expect to receive exactly what they are paying for.
Specific inconsistencies for avocado oil products were striking: 93% of avocado oil-labeled chips, 100% of dressings, and 71% of mayonnaises were found to be inconsistent. This means that the product's claim of using a premium oil does not align with the oil's actual chemical composition, strongly implying the presence of another type of oil, potentially in addition to avocado oil.
In contrast, the olive oil-labeled products demonstrated much higher consistency: 90% of the chips, 100% of the dressings, and 100% of the mayonnaises were consistent with authentic olive oil. Only one out of 20 olive oil products was found to be inconsistent, a stark difference compared to 48 out of 54 avocado oil products.
It is crucial to note that all products examined by UC Davis listed only one edible oil in their ingredient lists. There was no disclosure of blended oil formulations that could account for these discrepancies. Furthermore, many of these products make bold claims on their packaging, such as 'made with 100% avocado oil'.
Commenting on the findings, Professor Selina Wang, the lead author of the study, emphasized that the 'culprit' might not necessarily be the brands themselves. Wang believes that adulteration likely originates with oil suppliers, pointing to a lack of accountability throughout the supply chain. Simultaneously, food companies could enhance their efforts to verify the oil's authenticity.
The study concludes by stating that increased scrutiny of ingredient authenticity can help improve labeling transparency and maintain consumer confidence in premium oil claims. However, until such scrutiny becomes more widespread, consumers may find greater honesty in olive oil-labeled groceries.