TL;DW: Community beats diet as longevity goes. "The Roseto effect is the phenomenon by which a close-knit community experiences a reduced rate of heart disease. The effect is named for Roseto, Pennsylvania. The Roseto effect was first noticed in 1961....From 1954 to 1961, Roseto had nearly no heart attacks for the otherwise high-risk group of men 55 to 64, and men over 65 had a death rate of 1% while the national average was 2%. They smoked unfiltered stogies, drank wine "with seeming abandon" in lieu of milk and soft drinks, skipped the Mediterranean diet in favor of meatballs and sausages fried in lard with hard and soft cheeses. The men worked in the slate quarries where they contracted illnesses from gases and dust." "...the Melis family who hold the Guinness World Record for the longest-lived. Nine siblings whose collective age is 861 years. Every day of their life they ate the same breakfast: sourdough bread and minestrone Beans are King in Blue Zones. People there eat about a cup a day—which probably adds four years to their life expectancy."