The effects of overweight and obesity on diabetes, cardiovascular disease, all-cause mortality, and other health outcomes are widely known.
There is less awareness that overweight, obesity, and weight gain are associated with an increased risk of certain cancers.
Dr Greta Massetti and colleagues reviewed opportunities for clinical intervention in patients with excessive weight gain.
The research team also reviewed the association between obesity and cancer.
|There was a dose-response association of weight gain and obesity with several cancers|
|Journal of the American Medical Association|
The team reported that a recent review of more than 1000 studies concluded that sufficient evidence existed to link weight gain, overweight, and obesity with 13 cancers, including adenocarcinoma of the esophagus; cancers of the gastric cardia, colon and rectum, liver, gallbladder, pancreas, corpus uteri, ovary, kidney, and thyroid; postmenopausal female breast cancer; meningioma; and multiple myeloma.
An 18-year follow-up of almost 93 000 women in the Nursesí Health Study revealed a dose-response association of weight gain and obesity with several cancers.
The team's most notable finding was that cancer related to overweight and obesity were increasingly diagnosed among younger people.
Dr Masetti's team concludes, "Given the time lag between exposure to cancer risk factors and cancer diagnosis, the high prevalence of overweight and obesity among adults, children, and adolescents may forecast additional increases in the incidence of cancers related to overweight and obesity."