Those looking to improve their colon health may want to tuck into walnuts for a crunchy superfood snack that reduces cancer risk as a new study suggests so. Researchers from UConn Health and The Jackson Laboratory for Genomic Medicine found that eating walnuts may change gut bacteria in a way that suppresses colon cancer. They found that mice that ate 7-10.5 percent of their total calories as walnuts developed fewer colon cancers. The effect was most pronounced in male mice which had 2.3 times fewer tumors when fed walnuts as part of a diet similar to the typical American's. That's