[lambdaba]

By this logic (which I agree with), land animal fats would best match (for beef fat: "oleic acid (36.21%), palmitic (25.67%) and stearic (20.97)").

Nuts & seeds are often high in omega-6 and are hard enough to digest that it's hard to have them as a staple. I say this as someone who was a big fan of nuts, especially almonds, but had to give them up as they triggered autoimmune symptoms. Macadamia nuts by be okay though, they are also the highest in MUFA and low in phytic acid (which causes digestive troubles and inhibits mineral absorption).