Eating colorful fruits and vegetables may be good for your brain. A new study, one of the largest such analyses to date, has found that flavonoids, the chemicals that give plant foods their bright colors, may help curb the frustrating forgetfulness and mild confusion that older people often complain about with advancing age, and that sometimes can precede a diagnosis of dementia. The study was observational so cannot prove cause and effect, though its large size and long duration add to growing evidence that what we eat can affect brain health. The scientists used data from two large continuing health studies that began in the late 1970s and early 1980s, in which participants periodically completed diet and health questionnaires over more than 20 years. The analysis included 49,693 women whose average age was 76, and 51,529 men whose average age was 73. The scientists calculated their intake of about two dozen commonly consumed kinds of flavonoids which include beta carotene in carrots, flavone in strawberries, anthocyanin in apples, and other types in many other fruits and vegetables. The study appears in the journal Neurology. According to the senior author, Dr. Deborah Blacker ... these long-term findings suggest that starting early in life with a flavonoid-rich diet may be important for brain health. For young people and those in midlife, she said, "the message is that these things are good for you in general, and not just for cognition. Finding ways that you enjoy incorporating these things into your life is important."