For postmenopausal women who are overweight, it makes sense that losing weight could reduce their risk of breast cancer because being overweight or obese increases the risk. But when overweight women are working to shed pounds, is it primarily exercise or cutting calories that makes more of a difference in lowering the risk?
Both, suggests a new study, with weight loss fueled primarily by exercise possibly leading to even more benefits – at least in the short-term for certain markers of breast cancer.
The study is one of the few randomized controlled trials that focuses on teasing apart the effect of diet versus exercise on breast cancer risk. It was published this week in Cancer Epidemiology, Biomarkers & Prevention.
Previous research has shown that too much fat tissue can place the body in a constant state of inflammation. That leads to high levels of hormones and other proteins that can spur cancer cell growth. How exercise alone can affect inflammation and hormones is one of the big questions under study. Continue reading
Today is February 1st. Do you know what month it is? Not a trick question – this is a very important time for us all here at AICR as February is National Cancer Prevention Month. That means 29 days to shine a spotlight on the need for Americans to embrace and make healthy lifestyle changes to protect their health and reduce their cancer risk – and we are determined to make each day count.
It’s important to us because although there are huge strides being made in cancer treatment with new drug discoveries and precision medicine, these are expensive and come with their own challenges. We have a public health crisis — the number of cancer cases due to obesity and lack of physical activity will reportedly surpass those due to tobacco in 20 years. Prevention has the potential to save costs and suffering — and we need to think broadly about it as an effective strategy.
The chances are that if you are reading this blog, you already know about and take some steps to reduce your own cancer risk as part of your daily life. You might already know that an estimated one-third of US cancer cases could be prevented by eating healthy along with being active and a healthy weight. Many more could be prevented by not smoking and using sun protection. Maybe you try one of our health–e recipes, count your steps or watch your portion sizes on a regular basis. So are we simply preaching to the choir? Continue reading
Today the British Medical Journal (BMJ) published an editorial that attacks the science behind the U.S. Dietary Guidelines report. It’s a surprising development for several reasons: the BMJ is a prestigious journal, yet the piece contains several basic factual errors, and it arrives just as meat and sugar industry lobbyists are seeking ways to derail the 2015 Dietary Guidelines for Americans, which government officials are now in the process of writing. The Guidelines have the potential to help prevent thousands of cancer and other chronic diseases.
The piece, written by a journalist who last year published a book called The Big Fat Surprise: Why Butter, Meat and Cheese Belong in the American Diet, claims the report by the Dietary Guidelines Advisory Committee (DGAC) “does not take into account all the relevant scientific evidence” and is marked by an “overall lack of sound and proper methods.” It goes on to list several specific studies that weren’t included, and to question the inclusion of observational evidence that does not meet what it considers “established” methods of analysis.
Within hours, the article’s misleading statements earned this swift and spirited rebuke on the website The Verge. That post addresses the BMJ article’s errors in great detail, and we at AICR encourage you to read it. Continue reading