The World Health Organization says the global obesity problem has reached "epidemic proportions".
They estimate that over one billion adults are overweight and 300 million are considered clinically overweight.
Some cancers that are typically found in older patients are now seen in younger generations, thanks to a large proportion of our growing waist.
New research published by the American Cancer Society shows that half of all obesity-related cancer is increasing for millennia.
Colorectal, endometrial, gall bladder, kidney, pancreas and multiple myeloma typically do not occur in patients until they are in their 60s or 70s. But a new study found surprising increases in the cancers in young adults between 24 and 49 years. And the risk of colorectal, endometrial, pancreas and gall bladder cancer for thousands of millennia was twice as much as baby boomers had the same age.
An oncologist who is not involved in the study says it is a real wake-up call when it comes to weight.
In the United States, a study found over 40 percent of Americans is considered overweight.
While the link between obesity and cancer is unclear, there is no doubt that it exists.
Oncologists warn that cancer patients with a higher body mass index often have a poorer prognosis, especially if surgery is needed.