A body mass index of 23 to 24.9 is associated with a 14% increase risk in colorectal cancer compared to those with a body mass index of less than 23 according to an analysis a 56 studies.

A BMI Table can be found here.

A body mass index of 25 to 27.4 is associated with a 19% increase risk in colorectal cancer compared to those with a body mass index of less than 23 according to an analysis a 56 studies.

A BMI Table can be found here.

A body mass index of 27.5 to 29.9 is associated with a 24% increase risk in colorectal cancer compared to those with a body mass index of less than 23 according to an analysis a 56 studies.

A BMI Table can be found here.

A body mass index of 30 or more (which is the definition of obese) is associated with a 41% increase risk in colorectal cancer compared to those with a body mass index of less than 23 according to an analysis a 56 studies.

A BMI Table can be found here.

For every 5 unit increase in body mass index (BMI), there is a 18% increased risk of colorectal cancer according to an analysis a 56 studies.

A BMI Table can be found here.

In studies of Asian populations, a body mass index of 23 to 24.9 is associated with a 21% increase risk in colorectal cancer compared to those with a body mass index of less than 23 according to an analysis of 10 studies of Asian populations.

A BMI Table can be found here.

In premenopausal women, a body mass index of 23 to 24.9 is associated with a 54% increase risk in colorectal cancer compared to those with a body mass index of less than 23 according to an analysis a 56 studies.

A BMI Table can be found here.

Each 5 unit increase in body mass index (BMI) is associated with a 26% increase in the risk of colon cancer for North American men according to an analysis of 26 studies on North American populations.

Five units of BMI is very roughly 35 pounds for a man of average height, and 30 pounds for a woman of average height.

A BMI Table can be found here.

Each 5 unit increase in body mass index (BMI) is associated with a 17% increase in the risk of rectal cancer for North American men according to an analysis of 26 studies on North American populations.

Five units of BMI is very roughly 35 pounds for a man of average height, and 30 pounds for a woman of average height.

A BMI Table can be found here.

Each 5 unit increase in body mass index (BMI) is associated with a 12% increase in the risk of colon cancer for North American women according to an analysis of 26 studies on North American populations.

Five units of BMI is very roughly 30 pounds for a woman of average height, and 35 pounds for a man of average height.

A BMI Table can be found here.

Each 5 unit increase in body mass index (BMI) is associated with a 4% increase in the risk of rectal cancer for North American women according to an analysis of 26 studies on North American populations.

Five units of BMI is very roughly 30 pounds for a woman of average height, and 35 pounds for a man of average height.

A BMI Table can be found here.

Being obese, that is having in body mass index (BMI) of 30 or more, is associated with a 60% increase in the risk of colon cancer men compared to those with a BMI of less than 23 (lean) according to an analysis of 56 studies.

A BMI Table can be found here.

Being obese, that is having in body mass index (BMI) of 30 or more, is associated with a 30% increase in the risk of rectal cancer men compared to those with a BMI of less than 23 (lean) according to an analysis of 56 studies.

A BMI Table can be found here.

Being obese, that is having in body mass index (BMI) of 30 or more, is associated with a 25% increase in the risk of colon cancer women compared to those with a BMI of less than 23 (lean) according to an analysis of 56 studies.

A BMI Table can be found here.

Being obese, that is having in body mass index (BMI) of 30 or more, is associated with a 14% increase in the risk of rectal cancer women compared to those with a BMI of less than 23 (lean) according to an analysis of 56 studies.

Five units of BMI is very roughly 30 pounds for a woman of average height, and 35 pounds for a man of average height.

A BMI Table can be found here.

The one-fourth of people eating a diet with the highest glycemic index or highest glycemic load were 26 percent more likely to develop colorectal cancer compared to the one-fourth eating a diet with the lowest glycemic load. This according to an analysis of 39 studies.

The risk of colon cancer was 33 percent greater in men 40- to 75-years-old who had gained 10 pounds for every 10 years since the age of 21 according to a study from Walter Willett at the Harvard School of Public Health in Boston, Massachusetts, USA and others.

A weight gain of 10 pounds in the previous 2-4 years increased the risk 14 percent.

Nearly one-third (29.5 percent) of all cases of colon cancer in men 40- to 75-years-old were attributable to a body mass index (BMI) above 22.5 (lean) according to a study from Walter Willett at the Harvard School of Public Health in Boston, Massachusetts, USA and others.

“Our results add support that overweight and obesity are modifiable risk factors for colon cancer among men and suggest that weight has an important influence on colon cancer risk even in later life,” the researchers concluded.

A person with a body mass index (BMI) of 20—low normal—is 18 percent less likely to get bowel cancer than a person with a BMI of 25—high normal—according to a study from the World Cancer Research Fund as reported by the British newspaper the Telegraph.

Obesity is involved in 10 percent of cases of colon cancer notes the report Storing Up Problems: The Medical Case for a Slimmer Nation by the Royal College of Physicians.

A difference of about 60 pounds increases the risk of colorectal cancer 1.6-fold in postmenopausal women according to a study from the University of Oxford in Oxford, England.

Obese men are 80 percent more likely to get colorectal cancer than normal weight men according to a study of men and women in Ontario and Newfoundland, Canada.

An increase of 5 units in body mass index (BMI), which is roughly 30 pounds for a woman of average height and 35 pounds for a man of average height, increases the risk of colon cancer 30 percent in men and 12 percent in women according to an analysis by researchers from Sweden.

An increase of 5 units in body mass index (BMI), which is roughly 30 pounds for a woman of average height and 35 pounds for a man of average height, increases the risk of rectal cancer 12 percent in men and 3 percent in women according to an analysis by researchers from Sweden.

Men who get an hour of leisure-time physical activity per day are 44 percent less likely to get colon cancer and 41 percent less likely to get rectal cancer than men who get less than 10 minutes of leisure-time exercise per day according to study by researchers from Sweden.