Dr.SleepRoch said:

The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either.

Adding the part of the answer the thread has not reached. Take it one variable at a time. Almost every unanswerable question in these threads is unanswerable because three things changed in the same fortnight, and no amount of subsequent argument can untangle them after the fact.

The figures, for anyone assembling their own picture. 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.

Moderator note: two posts asking for a source have been merged into one. Please search the thread before asking again. Tagging this one for the weekly digest.

PharmacoVig_BOS said:

Keep the original post as written when you update it, and add the correction underneath.

Pushing back on PharmacoVig_BOS here. Pushing back on the anecdote-stacking. Twenty people reporting the same thing is twenty samples from the same self-selected pool, not twenty independent confirmations.

PharmacoVig_BOS said:

Keep the original post as written when you update it, and add the correction underneath.

That is right for the common case. Whether it is right for the case being asked about depends on a detail that has not been given.