Having plenty of tomatoes, carrots and other foods high in carotenoids may reduce the risk of breast cancer, especially the most deadly types, suggests a new study that spanned 20 years. The study, published in The American Journal of Clinical Nutrition, adds to a growing body of research on carotenoids, diet and breast cancer risk.
Carotenoids are a large group of phytochemicals that you can spot in many red, orange and yellow fruits and vegetables. Beta-carotene and lycopene, found in carrots and tomatoes to name a few foods, are a couple of the more well-known carotenoids. They’re also in dark green vegetables, such as kale and spinach.
Previous studies on carotenoids and breast cancer have been mixed. This study builds on research by the same group suggesting that carotenoids affect different types of breast tumors. We wrote about that here.
As in their previous study, the researchers used blood levels of carotenoids to measure intake. Back in 1989-90, they collected blood samples from almost 33,000 women who were part of the Nurses Health Study. Ten years later they collected another sample, with slightly less than half of the women participating again. All the women were regularly answering questionnaires about their health, weight, diet and other factors. Continue reading
We’ve been talking a lot about preventing liver cancer here with the release of our new report. Among other factors, the report concluded that obesity increases risk of liver cancer — a cancer that can stem from non-alcoholic fatty liver disease (NAFLD).
Now comes a study that suggests overweight adults who do even 15 minutes of daily exercise —regardless of intensity or weight loss— can reduce the risk of both liver fat and belly fat, compared to those who are inactive. Belly fat, also called visceral fat, is a sign of poor metabolic health and another risk factor for many cancers.
Non-alcoholic fatty liver disease has become the most common cause of liver disease in the US; it can lead to cirrhosis, which could develop into cancer. People with non-alcoholic fatty liver disease have extra fat in their liver that doesn’t come from alcohol. Weight loss and exercise are the basic recommendations for obese people who have NAFLD. But what intensity exercise and how much was the focus of this study. Continue reading
A new study that adds to the evidence on diet and colorectal cancer suggests that vegetarians have a lower risk of this cancer than non-vegetarians, with fish-eaters — pescovegetarians — showing the lowest risk of the non-meat eating groups.
The study was published yesterday in JAMA Internal Medicine and it will be a part of AICR/WCRF’s ongoing collection of the worldwide research. The latest AICR/WCRF report on colorectal cancer concluded that diets high in red meat increase the risk of colorectal cancer.
The study collected the eating and other lifestyle habits of almost 78,000 Seventh-Day Adventists, a group that traditionally advocates vegetarian and healthy eating. Researchers categorized the group into those who ate meat regularly and four vegetarian patterns: 1) ate fish regularly; 2) ate milk and eggs regularly 3) ate small amounts of meats and fish; and 4) ate no meats, dairy or any animal food (vegans).
Overall, vegetarians had lower BMI, ate less fat, red meat, and processed meat, and ate more fiber.
Slightly more than half the study population was categorized as vegetarians. Over 7 years, there were 490 cases of colorectal cancer. Continue reading