Earlier this week, 70+ people – representing interests such as meat, dairy, public health, sugar, vegetarian, spices and sustainability – gathered at the National Institutes of Health to weigh in on what the 2015 Dietary Guidelines should say to Americans about a healthy diet.
I had the opportunity to represent AICR and speak up for guidance that will help Americans more easily make choices to lower their cancer risk. Everyone had 3 minutes to speak directly to experts from USDA and Health and Human Services who will be writing the 2015 dietary guidelines for Americans. You can watch the video here. The Dietary Guidelines (revised every 5 years) are key to how we move forward with dietary advice, and that also affects how food is produced and manufactured in the U.S. Read more… “Speak Up Now: Voice Your Interests for the New Dietary Guidelines”
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.
Research shows that eating high amounts of red meat increases risk of colorectal cancer, possibly because it may spur inflammation. A new animal study published in The Proceedings of the National Academies of Sciences now points to a sugar molecule found in red meat as one mechanism responsible.
The molecule called N-glycolylneuraminic acid, or Neu5Gc for short, sticks to the ends of sugars found in red meats such as beef, pork, and lamb. Although most mammals produce Neu5Gc, humans don’t. Humans are “immunized” against Neu5Gc shortly after birth by an unusual process involving gut bacteria. As a result, when people eat foods that contain Neu5Gc, we produce antibodies that react to Neu5Gc, triggering inflammation.
Previous research has detected relatively high amounts of Neu5Gc in cancerous tissue.
In foods, Neu5Gc can be free or it can be bound to the ends of long sugar chains attached to proteins. The bound form is highly bioavailable, meaning it can easily be taken up into the body’s cells. Neu5Gc tends to accumulate in cells of the colon, prostate, and ovary. Read more… “Study Gives New Insights on Red Meat, a Sugar, and Cancer”
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