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Â· just now. 1  Burger King Cooking Oil. 2  Burger king uses Soybean, Canola, and/or Palm oil to fry their fries and onion rings in. 3  Fruits have sugar, it's natural, but some fruits can even be bad for you. 4  Fruits are sweeter and take less effort to arrange, generally, so I tend to eat more fruits.
Burger King Cooking Oil. Burger king uses Soybean, Canola, and/or Palm oil to fry their fries and onion rings in. The Fries are also coated first, in a mixture primarliy containing potato starch, rice flour, baking soda (sodium bicarbonate) and sugar (dextrose). The link below will take you to the Burger King website's nutrition and ingredients page. You will find not only the nutrition and ingredients info for the fries, but all menu items.