How can we develop healthy nutritional habits from the onset, and carry these habits with us throughout the life cycle?

Given the significance of nutrition at each stage of the life cycle, discuss the nutrition recommendations and dietary guidelines for each of the following developmental stages: pregnancy, infancy, childhood, adolescence, and adulthood. [http://www.bezern.com/] How can we develop healthy nutritional habits from the onset, and carry these habits with us throughout the life cycle? What are the consequences of not doing so?