This article explains the use of palm kernel oil and the dufference between palm oil and palm kernel oil:
Palm Oil vs. Palm Kernel Oil | What's the difference?
Its used in commercial food production. From a health perspective its not usually recommended as its extremely high in saturated fats.
Medium chain triglycerides?I used to use a lot of coconut oil for the MCT's when I was on the keto diet but it's not an option anymore.