[Tarrosion]

Am I missing something, or are all these effect sizes just shockingly improbably large? "decreased the risk of all-cause mortality, CVD-related mortality, and cancer-related mortality by 23, 26 and 22 % "

1/4 drop in mortality just from fiber seems...like too much? Am I missing something subtle about how these mortality reduction effects are defined? Or perhaps these are conditional expectations but not causal effects? (Example: if eating fiber is negatively correlated with binge drinking alcohol, then P(death|fiber) probably << P(death|~fiber), but it's unclear a priori how much of that difference is due to alcohol)

[nosefurhairdo]

I'm not a scientist and could totally be wrong, but I'm pretty sure the size of the effect depends on baseline risk. If the population has low baseline risk then a ~25% reduction in all cause mortality might only add a small amount to average lifespan.