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Nutrition is essential to life; as a minimum, it is necessary to eat enough to fuel basic energy needs. But eating is also pleasurable, and the popularity of diet books and food preparation television shows suggests that many people are fascinated, perhaps even preoccupied, with dietary choices and dietary indulgences. Food options are ubiquitous as well; even hardware stores and gasoline stations offer food options, and many other nonrestaurant or food markets offer food for purchase. Dietary advice is widely sought, and often new diet studies garner wide media attention. As an example, a 2019 article published in JAMA on the association of egg intake with incident cardiovascular disease and mortality had collected 13 citations, 42 000 views, and an Altmetric score higher than 3500 within 4 months of publication.1 With all of this attention, there is still great disagreement and controversy about what are the healthiest diet choices.
Greenland P. Dietary Adherence in a Clinical Trial of a Nutritional and Behavioral Intervention. JAMA. 2019;322(15):1500. doi:10.1001/jama.2019.15855
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