Obesity in teenage may up colon cancer risk later: study

In a new study, researcher found, that adolescents who are overweight are more likely to be at a risk of developing colon cancer as adults.
Researcher from Tel Aviv University in Israel found that being overweight and obese was associated with 53 percent and 54 per cent higher risk of colon cancer for men and women, respectively.

Obesity was associated with 71 percent increased risk of rectal cancer in men and more than a twofold increased risk in women, researchers said.
Zohar Levi from Tel Aviv University said "This is a huge cohort with a minimum follow up for 10 years, and all individuals had measured Body Mass Index (BMI), not just reported or recalled,".

Researcher analyzed information of 1,087,358 Jewish males and 707,212 Jewish females who underwent health examinations, including measures of BMI, at age 16 to 19 years (predominantly aged 17 years) between 1967 and 2002.This analysis was done till 2012.
As a result they found that over  a median follow up of23 years,2,967 new cases of colorectal cancer were identified, including 1,977 among men (1,403 colon, 574 rectum) and 990among women(764 colon,226 rectum)

The study was published in the journal Cancer.