[Genbox]

Taking a bunch of data from the Korean National Health Insurance database and looking for one specific connection is less than helpful. Like carl sagan said: extraordinary claims require extraordinary evidence.

A significant error I often see in cancer studies, is the assumption that after a carcinogenic event (consumption of something toxic, exposure to radiation, etc.) suddenly there is a tumor of such a large size the person notices it and gets it investigated by a medical professional.

Some cancers take years to grow, which means the increase in certain cancer-type rates cannot possibly be explained by a carcinogenic event within a 1-year timescale.

Science is not just about finding relationships in data. You have to justify the claims, argue against them, uncover biases and guarantee the correctness of data. Statistical links are the weakest form of evidence and literally anything can be proven if not graduated through the scientific model.