So the increase in cancer rates in younger people has come as a surprise. The numbers are stark. Data from the G20 group of industrialised countries indicates that between 1990 and 2019, cancer rates increased by 22% in the age group 25-29. Rates of cancer in the next age group, 30-34, are at the highest level ever. And given cancer screening classically isn’t routine in younger age groups, these cancers tend to go undiagnosed for longer with the tumours being more aggressive.
The increase in early-onset cancers since 1990 has mainly been in breast, colon, oesophagus, kidney, liver and pancreas cancer. Among the 14 cancer types on the rise, eight are related to the digestive system. Colorectal cancer, for example, increased 70% among those aged 15-39 in G20 countries between 1990 and 2019.
Ogino points to diet as being a key factor in the rise of cancers in young people (although this is still an educated guess rather than conclusive evidence). Ogino is not alone in pointing to diet: many experts have made this link after looking at the types of cancers on the rise, and their connection to the digestive system.
The basic problem is that the food we’re exposed to is often heavily processed but has the benefit of being affordable, easy, long-lasting and appealing to taste buds. But it is almost certainly quite bad for our health. And this is increasingly the case for children. Highly processed foods have become regular meals, including processed breakfast cereals, processed supermarket bread, ready meals, frozen pizzas, processed supermarket sandwiches, and processed biscuits, doughnuts and chocolates. As Dr Chris van Tulleken has written, we are becoming ultra-processed people. More than 80% of the processed food sold in Britain is considered unsafe for marketing to children by the World Health Organization.
https://www.theguardian.com/commentisfree/2023/jul/25/cancer-striking-earlier-ultra-processed-foods
RC