Although Drs. Campbell, Esselstyn, Barnard, Fuhrman, McDougall, and Popper may disagree on more subtle points of plant-based nutrition, they are all in total agreement that oil is not a health food. Oil is not a whole food - it's like sugar in this way - it's a part of a food that has been extracted from plants and concentrated, packing in way too much fat and no fiber.
It doesn't matter what your Omega-3/Omega-6 ration is if you're eating way too much fat - it's just not good for you, and none of them promote the use of free oils of any kinds.
Their cookbooks "contain no recipes with free oil" but contain nut butters. Darn, they contain free oils, They are saturated fats.
Peanut butter, almond butter, etc., because they were not soaked first before blending, and they have had to be heated up to be put into a jar to be sterilized.
They are dead. That dead fat from the peanut butter or almond butter will dissolve artery linings.
Peace and Love Be With You,