Researchers in Nebraska and Canada gave female mice a solution of flaxseed oil, which contains lignans, a compound found in fiber-rich foods like grains, seeds, nuts, and drinks like coffee.
They found it triggered a relationship between the gut microbiome and mammary gland microRNAs (miRNAs), which are linked to breast cancer cell growth.
Rodents given the flaxseed oil were less likely to develop breast cancer.
