Flavonoid Intake for Maximum Longevity Flavonoid Intake for Maximum Longevity Participants consuming about 500mg of total flavonoids each day had the lowest risk of a cancer or heart disease-related death. ‘Flavonoid intake is associated with lower mortality in the Danish Diet Cancer and Health Cohort,’ Nature Communications (2019). DOI: 10.1038/s41467-019-11622-x https://www.nature.com/articles/s41467-019-11622-x