Why Do McDonald's French Fries Taste So Good? TikToker Says the 'Secret' Is in the Oil And It May Be Bad News for Vegetarians The little-known additive in McDonald’s cooking oil has sparked controversy for decades. Previous Article CRM and PDFS See High Growth Potential With B Ratings Next Article Conquer Python and Learn Programming from Home With This Bundle, Now Just $19.97 for 12 Courses