The researchers did a chemical analysis of 54 products that listed avocado oil as their only oil ingredient. One avocado-oil product appeared to have no avocado oil at all, according to one of the researchers. For Millennials like me who sustain ourselves almost exclusively on avocado products, it's enough to make you fall into an avocado pit of despair. If a product lists avocado oil as its only oil ingredient but actually contains other oils, that could violate federal food-labeling rules. (Photo by Apu GOMES / AFP via Getty Images)The economics of healthwashingThe economics of healthwashing starts with a simple reality: we often don't really know what's in the food products we're buying.