Traditionally, lard was used for this purpose, not oils. This remains one of the best choices.
Good alternatives are butter or high-oleic sunflower oil or other high-oleic refined vegetable oils, which also have a low content of PUFA and of substances that are not triglycerides.
This is different from the case when the purpose of an oil is to be eaten without being heated, when cold-pressed non-refined oils are preferable, because they include various beneficial nutrients.
In any case, even if some kind of fat is used for frying, it is good to try to avoid eating most of it.
It is also possible to never use frying. In this case everything that is neither boiled nor steamed can be baked in an oven. This includes all kinds of meat (which must be cut into slices or small pieces before baking).
Good alternatives are butter or high-oleic sunflower oil or other high-oleic refined vegetable oils, which also have a low content of PUFA and of substances that are not triglycerides.
This is different from the case when the purpose of an oil is to be eaten without being heated, when cold-pressed non-refined oils are preferable, because they include various beneficial nutrients.
In any case, even if some kind of fat is used for frying, it is good to try to avoid eating most of it.
It is also possible to never use frying. In this case everything that is neither boiled nor steamed can be baked in an oven. This includes all kinds of meat (which must be cut into slices or small pieces before baking).