Your risk of getting cancer isn't all about genes and luck. In fact, at least half of all cancers can be prevented through lifestyle choices, according to the Canadian Cancer Society, and 30 to 35 percent by eating well, exercising and staying at a healthy weight.

So how can you lower your odds? Start by focusing on good nutrition, says Aileen Burford Mason, PhD, a former cancer researcher at the University of Toronto who now specializes in orthomolecular health and nutrition. "Not only is the wrong diet associated with getting cancers," she says, "it's also associated with recurrence." Read on to learn how good nutrition can help you prevent cancer in yourself and your family.