Truthfully it's not so much of what do they use it's what DON'T they use. Here a lot of foods are naturally fatty because of the oil put and used to cook our food, on my profile I have a video of a few photos of home made dishes I've eaten recently and as you can see most of them are pasta, rice, fried foods and the soups are made with quite a bit of sunflower or palm oil cause you have to fry the blended pumpkin seeds before you put in water and let it cook. (Egusi soup) At least I can speak for Nigeria and Jamaica.
4 months