Not a book, but a video course, "Nutrition Made Clear" at TheGreatCourses.com. Unlike a lot of the other books I see recommended here, this is not a dieting advice book, it's a course on nutrition. The professor specializes in sports nutrition, so a lot of the anecdotes are along those lines. It's 36 lectures, about 30 min each, plus the guide book.
https://www.thegreatcourses.com/courses/nutrition-made-clear...