A major study that might have little value

Results of a long-term study involving around 49,000 post-menopausal women shows "no statistically significant difference ... in the rates of breast cancer, colorectal cancer or cardiovascular disease between women on a reduced fat diet – eating five portions of fruit and vegetables and six portions of grains each day – compared with those who made no dietary changes." Massimo Pigliucci gives us important food for thought about this study. So does Steven Novella.