Six editions of Nutrition: Concepts and Controversies have been tested by students and professors in classrooms across the nation. In each edition, we apply what we have learned from past readers, changing the book to meet changing times. Now, as we look ahead toward a new millennium, we face an even more rapidly changing future. In this edition, we have expanded our balanced por-trayal of nutrition's new frontiers, retained our accurate presentation of established nutrition knowledge, and heightened our sense of personal connection with instructors and learners alike. We still write in the informal, clear style for which we have received plaudits. For both verbal and visual learners, our style and our clear, colorful figures keep interest high and understanding at a peak. New photos and abundant figures adorn many of the pages, adding pleasure and clarity to the reading.
In the seventh edition, you will find some new practical features to connect science concepts with food choices. Sections called Do It invite students to apply chapter concepts to everyday encounters with nutrition. The Do Its of Chapters 1 and 10 offer ways to judge nutrition information from the media and from makers of supplements for athletes. Those of Chapters 2 through 9 guide students along approaches taken by menu planners. In one approach, demon-strated in the Do It sections of Chapters 4 through 8, the planner answers the question of how many grams, milligrams, and micrograms of nutrients a meal provides and compares the totals to a standard such as the RDA. An alternative food-based approach to menu planning, demonstrated in Chapters 2 and 9, is the food group approach. The student is asked to assess the adequacy of meals by comparing them with the Food Guide Pyramid recommendations. The final Do It of Chapter 11 ties together the previous exercises and allows students to stretch their skills by identifying meals that best meet the goals of the Dietary Guidelines for Americans and other recommendations.
Another powerful new feature in this edition is the Self-Check, a series of review questions at the end of each chapter. These sections allow students to quickly review each chapter's content, and the answers in Appendix G provide immediate feedback. These Self-Check questions were provided by Judy Kaufman who has used our text with her students at Monroe Community College for many years.
By popular demand, we have retained our Snapshots of vitamins and minerals

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