For those who have had possible precancerous growths removed from their colon/rectum — common among adults — taking vitamin D and/or calcium supplements does not reduce the risk of developing further growths, finds a randomized study reported in the New England Journal Of Medicine. The multi-year trial adds to the evidence that supplements do not protect against colorectal cancers.
While there are many reasons to take supplements, AICR recommends not to rely on supplements for cancer protection.
The 2,259 people in this study all had colorectal abnormal growths, called adenomas or polyps. Some of these growths on the lining of the colon or rectum could eventually lead to colorectal cancer, which is why they are commonly removed.
Within four months of having the polyps removed, the participants (who were 45 to 75 years old) were placed into a group where he/she took a daily dietary supplement of vitamin D, calcium, both or neither. The study was blinded so neither the researchers nor participants knew what they were taking. And when they joined the study, everyone had normal levels of calcium or vitamin D. Continue reading
Over a third of children and adolescents are eating fast food on a given day, according to a recent report from the Centers for Disease Control and Prevention.
Previous research suggests that fast food intake is associated with higher calorie intake and poorer diet quality, which may increase their risk of weight gain. In adults, fast food intake is associated with weight gain according to a 2013 Centers for Disease Control and Prevention report. And adults with excess body fat are at increased risk for many common cancers, including post-menopausal breast, colorectal and liver.
Using data from the 2011-2012 National Health and Nutrition Examination Survey, the report found that 34 percent of 2 to 19 year olds are eating fast food on any given day. And about one of ten kids is getting a quarter to 40 percent of their calories from fast foods.
Percentage of children and adolescents aged 2–19 years who consumed fast food on a given day, by calories consumed: United States, 2011–2012
SOURCE: CDC/NCHS, National Health and Nutrition Examination Survey, 2011–2012.
Fast food calorie intake was two times higher in the teenagers and there was no Continue reading
A fiber-rich bean-based meal can be just as satisfying as a protein-rich beef-based meal, according to a recent short-term study, published in the Journal of Food Science. The findings are good news if you want to cut back on red meat and up your fiber intake – both recommendations for cancer prevention.
This early study included 28 healthy adults (50% women) who consumed 2 “meatloaf” test meals on separate visits matched for portion size, calorie, and total fat content.
- Meal one was a high protein beef meatloaf, about one-half the daily value of protein (26 grams), and one-eighth the daily value fiber (3 grams).
- Meal two was a high fiber, moderate protein bean-based “meatloaf” – about one-third the daily value protein (17grams ), and half the daily value fiber (12 grams).
Researchers compared the effect of both meals on reported hunger, satiety, and fullness, as well as calorie intake at later meals.
Source: Bonnema, A, et al., The Effects of a Beef-Based Meal Compared to a Calorie Matched Bean-Based Meal on Appetite and Food Intake. Journal of Food Science, 2015