A full page ad from Mazola Oil in a recent Sunday coupon insert, made an astounding claim:
What? Corn oil is better for you than olive oil? There is a block of almost unreadable fine print at the bottom of the page. It reads in part:
“…Very limited and preliminary scientific evidence suggests that eating about 1 tbsp (16 grams) of corn oil daily may reduce the risk of heart disease due to the unsaturated fat content in corn oil. FDA concludes there is little scientific evidence supporting this claim. To achieve this possible benefit, corn oil is to replace a similar amount of saturated fat and not increase the total number of calories you eat in a day.”
How limited was the test? According to a summary of the results, the theory was only tested on 54 people.
Two other points:
The question becomes whether it is fair to tout this health claim in big headlines with such a limited test? We asked the makers of Mazola to comment on this and the discrepancy in the amount of oil needed to achieve the claimed benefits, but they failed to respond.