Introduction -- Assessment of life cycle factors related to diet and obesity-associated disease -- Predictors of maintained behavior change with emphasis on weight loss -- Lifestyle change factors related to lifecycle states 1, 2, and 3 -- Motivational interviewing for childhood and parental feeding habits : stage 1 -- Motivational interviewing for children and adolescents : stage 2 -- Motivational interviewing for adults and the elderly : stage 3 -- Innovative approaches to maintaining healthy behaviors -- Tailoring to patient needs -- Examples of dietary strategies based on long-term randomized clinical trials focused on lifestyle change -- Reducing stress to maintain dietary change -- Organizing data on dietary change -- Potential new theories playing a role in nutrition lifestyle change -- Summary.