German researchers have traced a molecular path from the fatty foods of a Western diet to tumor growth in the colon, establishing for the first time a causal link rather than mere correlation. The mechanism runs through the gut's microbial community, where certain bacteria convert bile acids into a compound called deoxycholic acid, which accelerates the cell division that can spiral into cancer. At a moment when colorectal cancer deaths among younger adults are quietly rising, this discovery places the dinner plate at the center of a conversation that medicine has long needed to have.
German researchers prove fatty diet's link to colorectal cancer via gut bacteria
Colorectal cancer mortality in people under 50 has increased 1.1% annually since 2005 in the US, with early symptoms often missed or misattributed to less serious conditions.