ACLM (American College of Lifestyle Medicine) has 6 pillars: Nutrition, Sleep, Exercise, Tobacco, Relationships and Stress Management. See this infographic, for example.

Prominent doctors like Drs Esselstyn, Greger, McDougall, Fuhrman and Goldhamer emphasize nutrition. And they mention exercise every now and then. Only Drs Ornish and Klaper emphasize the role of love and community support as an important pillar for disease prevention.

Dr Ornish's initial studies for heart disease from late 70s and early 80s had multiple interventions: diet, movement & meditation! Later, Dr Esselstyn showed that we need just two: diet & movement. Since movement can be explained in 1 sentence (do some moderate exercise everyday :-) ), the entire emphasis in WFPB circles is on diet, a complex subject with thousands of questions. For a history of Dean Ornish's work, see Heart Disease & Dr Dean Ornish.

How may we create Roseto Effect in our lives? Let's say I'm an individual from a weak family (in the sense that there is not much love or social support). How may I create a Roseto-like system for myself today? Seems like a hard problem.

… and that makes me wonder: let's say there is a set of individuals who would like to reduce their risk of chronic diseases but don't know each other. How may they set up a Roseto-like system for themselves? It seems difficult. Maybe that's why Lifestyle Medicine research in heart disease gravitated towards what individuals can do by themselves: change diet and engage in movement. And luckily, just those two seem to work well for heart disease and several other conditions.