Scientists are just beginning to understand the impact of diet on the gut microbiome and how this interaction affects human health, but baselines must first be established to yield answers. The first large-scale, longitudinal study to evaluate this interaction among Chinese adults indicates that long-term healthy eating yields microbiome diversity and an abundance of fiber-fermenting bacteria.
Conventional colorectal adenomas are the precursor lesions for most colorectal cancers. In addition to these adenomas, other colorectal polyps are detected during colonoscopy. Sessile serrated polyps (SSPs) represent an alternative pathway to carcinogenesis that may account for 20-30% of colorectal cancer. Because a diagnostic consensus for SSPs was not reached until 2010, few epidemiologic studies have evaluated risk factors for SSPs.