Moderator note: a post naming a supplier has been edited. Discuss suppliers in the review sections, not here. Report rather than reply if it drifts again.

Admin said:

Update, and it is the boring outcome: nothing was wrong.

That reframing is the part I needed. Printing the relevant bit and taking it with me.

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.

PharmD_Rodriguez said:

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

Adding a me-too, because a thread of one person's experience is not much use. Posting only so the count is not one.

PharmD_Rodriguez said:

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

Coming at PharmD_Rodriguez’s question from a different direction. The useful move here is to separate what is established from what is widely repeated. Those two sets overlap less than the confident tone of most write-ups suggests, and the second set is where nearly all the disagreement on this board comes from.