Clinical perspective, offered as context rather than as advice. The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either. Those three things can all be true at once, and most arguments here are two people holding different parts of that.
Dr.NutriCornell said:The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either.
This matches mine closely enough to be worth saying so out loud.
Dr.NutriCornell said:The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either.
There is a second half to this that has not been said yet. Worth answering the question that was asked rather than the one behind it. The narrow version usually has an answer; the broad version usually does not, and answering the broad one is how a thread stops being useful.
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Shop Reference StandardsOne concrete data point for the thread. Keep the original post as written when you update it, and add the correction underneath. An edited-away mistake is invisible to the next person who makes it.
Closing the loop on my own question.
Closing the loop. The answer turned out to depend on the detail I had left out of the opening post, which is a lesson about how to ask rather than about the subject.