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A comment on Eating 7+ portions of fruits and veggies a day reduces your risk of death by 42%.

Re:Eating 7+ portions of fruits and veggies a day reduces yo... by grishas on Tuesday April 01, 2014 @02:01PM (#7510322)
Ah, food studies. The breeding ground of bad science. I am not saying this is bad science, but a quick glance shows this to be survey data.

The problem with the data is that people who eat "healthy" probably care more about their health. Even if the food has a negative effect, they could have other tendencies (exercise) that outweigh any negatives.

Plus they probably eat more carefully, in general, drink less, etc. So... correlation != causation yada yada

A better study would be to take unhealthy people and now introduce the fruits and veg and see what happens.

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Re:Eating 7+ portions of fruits and veggies a day reduces yo... by johnrob on Tuesday April 01, 2014 @02:07PM (#7510384)
You might be correct, but I've seen a lot of smart people fall into this trap: "X is not proven to be true, there for X is false". The study might not prove any hard facts, but it doesn't mean the point of the study isn't spot on.
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