Lactobacillus johnsonii Synthesizes Chenodeoxycholic Acid to Reduce Susceptibility to High-Fat Diet–Induced Colorectal Cancer

Investigation of bacteria-host interactions that alter cancer susceptibility uncovers suppression of high-fat diet-induced colorectal cancer by Lactobacillus johnsonii, offering a translational approach to improve cancer prevention. See related commentary by Dalal and Shah, p. 4579.