Nu t r it io n
Concepts and Controversies

A billboard in Louisiana reads, “Come as you are. Leave dif-
ferent,” meaning that once you’ve seen, smelled, tasted,

and listened to Louisiana, you’ll never be the same. This book
extends the same invitation to its readers: come to nutrition
science as you are, with all of the knowledge and enthusiasm

you possess, with all of your unanswered questions and mis-
conceptions, and with the habits and preferences that now dic-
tate what you eat.