Go ahead and splurge; it turns out that most of what you've been fed is dead wrong. Not only does an apple a day not keep the doctor away, but grilling your burgers is a-okay. And all that stuff about a high-fiber diet preventing colon cancer's bunk, too:
The hypothesis that fatty foods are a direct cause of cancer has also been crumbling, along with the case for eating more fiber. The idea that red meat causes colon cancer is shrouded in ambiguity. Two meta-analyses published in 2011 reached conflicting conclusions — one finding a small effect and the other no clear link at all.
If hamburgers are carcinogenic, the effect appears to be mild. One study suggests that a 50-year-old man eating a hefty amount of red meat — about a third of a pound a day — raises his chance of getting colorectal cancer to 1.71 percent during the next decade, from 1.28 percent. Spread over a population of millions, that would have an impact. From the point of view of an individual, it barely seems to matter.
So what does matter? Eating fat doesn't cause cancer, but being fat might; it's suggested, in fact, that with the decline in smoking, being fat may cause more fatal cancers than ciggies.