Sander Kersten really knows his stuff. His English is not perfect, but he is clear. And he has a quirky sense of humour. I particularly like that he presents a very balanced view of controversial subjects. This is a very good course for anybody wanting basics in nutrition science and some clarity around all the conflicting information about nutrition. Also, both he and the TAs are far more active in the discussion forum than I've seen in any course so far (and I've taken or dabbled in a few), except perhaps Understanding the Brain from the U of Chicago, which also was very good. I like, too, that several weeks are opened at once, and it's possible to work ahead. I'm close to done with this course and thoroughly enjoying it.