I did not know that "nonmedical" biochemistry books were recommended for medical school, you sure it is Principles of Biochemistry?
And I quote from our student handbook, for the Biochemistry course:
"Faculty Recommended Texts:
Lehninger A. Principles of Biochemistry. 4th Edition. ISBN: 0716743396"
The other faculty recommended book is Berg's Biochemistry 5th edition. The handbook also mentions that some students prefer to use the Lippincott book, although it is not offcially recommended.
So yep, apparently "nonmedical" texts are used (though I'm not really sure what you mean by that term). We've only completed the first third of the course so far, but a lot of it so far has basic biochemistry like what makes up lipids, carbohydrates, etc plus basic genetic principles. It probably varies somewhat from school to school, but I guess you have to remember that most medical schools do not require you to take either genetics or biochemistry in undergrad. Therefore, it seems to make sense that they use a basic biochem book; it is, afterall, a "basic science" course. Let me assure you, however, that we are moving through the material much, much faster than in any biochem or genetics course I ever had in undergrad.
I actually like the Lehninger book fairly well, as textbooks go, being that I am not a "textbook" person.