I'm pretty sure it is!

Is Eating People Wrong? (by Allan C. Hutchinson) is a fine book title. In fact, it's so good, I want to nominate it as a late entry for the Oddest Book Title of the year.

Is Eating People Wrong? also has a similarity with the already-nominated title Managing a Dental Practice the Genghis Khan Way.

Both books stress the importance of flossing!