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Obesity strongly linked to 11 types of cancer
For the current study, researchers analyzed results from 204 previously published studies exploring the connection between obesity, weight gain, waist circumference and 36 different cancers.
After menopause, women’s risk of breast cancer increased by 11 percent for every 5 kilograms (11 pounds) of weight they gained during adulthood.
Cancer is a leading cause of death worldwide, and the prevalence of obesity has more than doubled over the past generation.
“Avoiding weight gain through adult years is important,” Colditz said.
Researchers found strong evidence linking weight gain to colorectal cancer.
As it stated in “It is one more reason for people to be concerned about the excess body weight that they carry,” he said.
All of us who carry excess fat, and that is most of us in this country, are at some degree of risk.”
For men, for every 5kg/m2 increase in BMI, the risk of developing colorectal cancer rose by 9%, while among women forgoing HRT, the risk of developing postmenopausal breast cancer increased by 11%.
While the new study does not shed light on how excess body weight is linked to an increased risk of various cancers, a number of explanations have previously been proposed.
While 18% were deemed “highly suggestive” of a link between excess body fat and cancer, 20% had only weak evidence while 25% had no evidence for a link.
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