Obviously deodorized oils are not very healthy, but I honestly don't understand all the posts like "Eat only coconut oil/butter/lard". For the "appeal to science", there's plenty of data that diets very high in saturated fats is a risk factor for heart disease. For the "appeal to nature", ancient peoples did not have our modern access to animal fats, hunter gatherers ate a lot of seeds, nuts and bugs to fill out a diet that otherwise ate small lean game with occasional big fatty hunting successes.