A new study published this week adds to the emerging evidence linking coffee to lower risk of some cancers, giving coffee lovers another excuse to drink up.
This time, researchers found a lower risk of malignant melanoma in older adults with the highest coffee intake. Melanoma is the fifth most common cancer in the U.S. and the deadliest form of skin cancer, but exposure to ultraviolet radiation (UV) and sunburns are the only key risk factors within your control, according to the National Cancer Institute.
The new study published in the Journal of the National Cancer Institute included nearly 450,000 non-Hispanic white participants. Participants answered questions about their coffee intake and then were followed for an average of 10.5 years to see if they developed a non-invasive melanoma, known as melanoma in situ, or malignant melanoma.
Those with coffee intake of more than 4 cups per day had a 20% lower risk of malignant melanoma compared to non-coffee drinkers. High intake of regular coffee and total caffeine, but not decaffeinated coffee, were also associated with a lower risk of malignant melanoma. There was no link between coffee intake and melanoma in situ. Continue reading
Today, a new study found that replacing even a small amount of that sedentary time with some physical activity could reduce early death for people of all weights and waist sizes. A growing body of research is linking sedentary behavior to cancer risk.
The new analysis, published in American Journal of Clinical Nutrition, used data from over 334,000 people in the European Prospective Investigation into Cancer Nutrition (EPIC) study to determine if overweight, obesity or large waist size would affect whether reducing sedentary behavior improves survival.
The investigators compared rates of mortality over twelve years, between four levels of physical activity (inactive, moderately inactive, moderately active and active) and categorized by BMI and waist size. Continue reading
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. Continue reading