This is incredibly disingenuous. Nutrition is incorporated into most of the medical curriculum. Biochemistry is an entire course. I am involved in discussions with dieticians every day, frequently having to correct their misconceptions, not as the one getting corrected.
Furthermore it is quite simply not that complicated once you drill down past the bullshit and stick to what we actually know. Eleven hours is more than enough dedicated classroom time, once you account for the 4-5 outside hours spent reading in preparation per hour of discussion.
This is a hit piece written by people with an agenda, with all the subtlety of a nurse claiming she saves the lives of her patients every day by protecting them from the evil, cruel physicians. And this agenda is similarly complete bullshit.
The rapture would supposedly take place after a prolonged period of time, decades if not longer, marked by deep pain and countless suffering by all of humanity. During which, the majority of humanity will in fact perish in awful circumstances.
The rapture out of a clear blue sky is a pure evangelical hopium dream that expressly contradicts not only the assorted traditions and beliefs of the actual church but even the actual biblical passages they claim to base this misinterpretation from.
If someone is anticipating the rapture they are deeply ignorant of the basic fundamentals of their own religion, e.g. a typical evangelical.