BMJ Group Jul 30 2025 A higher intake of ultra processed food (UPF) is linked to an increased risk of lung cancer, suggests research published online in the respiratory journal Thorax . Further research is warranted in different population groups, but limiting consumption of these foods may help curb the global toll of the disease, say the researchers. Lung cancer is the most common cancer in the world. And in 2020 alone there were an estimated 2.2 million new cases and 1.8 million deaths from