Bengaluru, Feb 4 (IANS): Obesity can lead to the development of 13 different types of cancer, experts said, adding people with obesity or severe obesity are 1.5 to 4 times at risk of developing cancer in organs like oesophagus, stomach, liver, pancreas, colorectal, gallbladder, kidney, and thyroid.

Tausif Ahmed Thangalvadi, Medical Director at NURA, a collaboration between Fujifilm Healthcare and Kutty's Healthcare offering AI-enabled imaging in Bengaluru, highlighted key findings from a working group document of the International Agency for Research on Cancer (IARC) on the occasion of World Cancer Day.

Research has shown that obese women also face the impact of reproductive organ cancers like endometrial (4-7 times the risk compared to non-obese women), breast cancer (1.5 times) and ovarian cancer (1.1 times).

Breast cancer and colorectal cancer are the most common obesity related cancers in women and men, respectively, with 30 per cent higher risk compared to non-obese people. A 2019 study found that obesity related cancers accounted for nearly 4 per cent of the global burden of cancers, Thangalvadi said.

As per Unicef's World Obesity Atlas 2022, India is predicted to have 2.7 crore children with obesity by 2030, he said.

Thangalvadi said: "There are many ways in which obesity can increase the risk of cancer. Fat tissue in the human body releases excess levels of oestrogen, which in women leads to an increased risk of breast, endometrial, and ovarian cancer. High levels of insulin and insulin-like growth factor (IGF-1) in obese people increases risk of colorectal, kidney and prostate cancer. Obesity also leads to chronic inflammation and oxidative stress on tissues, further increasing the risk of cancer."