Earlier quoted context omitted.
Also addressed in TFA, it turns out. GI symptoms are pretty mild in the universe of cancer drug side effects, and the aspirin slows metastatic cancer spread considerably, so seems like a no brainer.
It isn't a cancer drug, so that isn't a fair comparison. GI symptoms from eating more broccoli and not ever drinking are also pretty mild compared to cancer drugs. Aspirin appears to be a preventative according to some initial research. National cancer institute says even the most at-risk age group (age 60+) is still only has cancer rates of around 1 in 100. How long are you going to take low dose aspirin? Are GI sym…
Younger people than that do get cancer and die from it. If it arrests tumour growth and even sometimes causes reduction and one is at risk, resisting aspirin treatment out of cargo cult common sense is a bad idea.