Diets don't work, they have a timeframe which you mainly work to reach the goal in a said amount of time. Most individuals don't learn to maintain, they're following what the "book" says. Instead, gather any and all information needed to learn what's best for you. This concept focuses on dietary lifestyle change. Changing what you eat, and when you (for example stop skipping breakfast, jumpstart the metabolism) will result in long term effects. 80% nutrition, 20% fitness = weight loss and management.