Metformin and vitamin D3 show impressive promise in preventing colorectal cancer

(Case Western Reserve University) The concept was simple: if two compounds each individually show promise in preventing colon cancer, surely it's worth trying the two together to see if even greater impact is possible. Not only did the combination of the two improve outcomes in animal studies, but the dual-compound effect was dramatically better than either option alone. Their findings served as the cover feature February's edition of Cancer Prevention Research.