Back to today’s briefing

Story perspectives

UC Davis: 80% Avocado Oils Rancid, Most Adulterated

7/16/2026

39 5 Full Breakdown

Summary

Story summary

UC Davis researchers tested 54 avocado-oil foods and found most were diluted cheaper oils.
Fatty-acid analysis showed 48 products contained canola and safflower oils, with all salad dressings failing and 93% of chips and 71% of mayonnaises adulterated.
Avocado-oil items cost 500% more, with mayo at 65–67 cents per ounce versus 10 cents, while UC Davis testing found 82% of bottled and 70% of private-label avocado oils rancid or blended.

1 of 1

Story summary

UC Davis researchers tested 54 avocado-oil foods and found most were diluted cheaper oils.
Fatty-acid analysis showed 48 products contained canola and safflower oils, with all salad dressings failing and 93% of chips and 71% of mayonnaises adulterated.
Avocado-oil items cost 500% more, with mayo at 65–67 cents per ounce versus 10 cents, while UC Davis testing found 82% of bottled and 70% of private-label avocado oils rancid or blended.