2007 - The Ffactor Diet Discover the Secret to Permanent Weight Loss (Paperback) → Hardcover ISBN-13: 9780399533747 ISBN-10: 0399533745 Genres: Health, Fitness & Dieting, Parenting & Relationships 4 2006 - The Ffactor Diet Discover the Secret to Permanent Weight Loss (Hardcover) → Paperback ISBN-13: 9780399154126 ISBN-10: 0399154124 Genre: Health, Fitness & Dieting 8 |