No worries for me. I read this "news release" and immediately wondered about the veracity of the study and/or its interpretation by the media.
Things like: "The average person has a risk of bowel cancer of five in 100 but this rises to six in 100 if they eat 50g of processed meat a day" as the "news release" says, makes me wonder about what the real report has to say.
What I notice here is that there is only a 1% increase for eating this amount of processed meat. Who knows how small that increase might be for eating unprocessed meat? (The authors of the "news release" seem to be saying that processed meat is worse; note where they write, "people should avoid processed meats altogether because of the even higher risk of bowel cancer").
Other things to consider might be the number of persons in the study, the controls, who funded the study, etc.
I guess my view is to look at the broader picture. And to eat a wide variety of foods in general. Heck, you could still 4 steaks a week (if a steak is 145 g and they "allow" 500 g of red meat a week) and be within those guidelines. I don't eat 4 steaks a week, but YMMV. Still, it's a pretty generous window considering we all should be eating fish, poultry, and eggs as well as beef and pork (not sure where lamb falls into the "colors" of meat--I suppose it is "red," too).
For my money, the data I am finding on paleo/primal eating is much more convincing than anything I am hearing from the CW these days. They lost their credibility with the low-fat/high-carb thing they have been pushing for the past 30 years or so.
Everything I eat has been proved by some doctor or other to be a deadly poison, and everything I don't eat has been proved to be indispensable for life. But I go marching on. ~George Bernard Shaw
Starting Weight (1/3/2011): 189
Current Weight: 173
Goal: To be in the best shape ever by age 50! (5/11/2012)