These days, it’s difficult to know what to believe when it comes to nutrition. After all, there’s always someone claiming that a new “superfood” is either the key to a long life or pretty much no healthier than just a regular apple. One such food that’s often bandied around as being good for us is coconut oil, with even celebrities touting its supposed benefits. Now, however, a Harvard professor reckons that this supposed miracle-worker may actually have a dire impact on your body.