 Three, sugary and artificial drinks. Whether sweetened with sugar or artificial sweeteners, research suggests a daily can of soda can hike your cancer risk by over 36%. Four, fruit juice. Here's the twist. Juices, though packed with vitamins, lack the fiber of whole fruits. Studies show this can still elevate cancer risk almost as much as sugary drinks. So go for the whole fruit instead. Five, white versus whole wheat bread. Interesting fact, white bread appears linked to higher colon cancer risk while whole wheat bread seems to show a protective effect. Think fiber again. Soda.