The World Health Organization says the "epidemic" of overweight and obesity causes over 1.2 million deaths a year across Europe.
In the report published on Tuesday, the WHO said that obesity rates on the continent have increased by 138 percent in the last five decades. Nearly a quarter of adults are now obese in Europe - more than in any region other than America, the WHO said.
"The rates of overweight and obesity have reached epidemic proportions throughout the region and are escalating," said the WHO Europe Office.
"Increased body mass index is a major risk factor for non-communicable diseases, including cancer and cardiovascular disease," the report quoted WHO Regional Director Hans Kluge as saying.
Obesity causes at least 13 different types of cancer and is likely to be responsible for at least 200,000 new cases of cancer each year, the report said.
"This figure will increase even more in the coming years," warned the WHO.
Overweight and obesity are estimated to cause more than 1.2 million deaths a year, accounting for more than 13 percent of deaths in the region, according to the WHO report.
The organization called for policy change, to prevent obesity and to promote healthy lifestyles. As examples, she cited the taxation of sugary drinks and the subsidization of healthy foods.