Dr.NutriCornell said:

Whatever the answer turns out to be, the method for getting there is the same: state the assumption, do the arithmetic in public, and invite the…

This is my experience too, for whatever a second data point is worth.

Dr.NutriCornell said:

Whatever the answer turns out to be, the method for getting there is the same: state the assumption, do the arithmetic in public, and invite the…

Coming at Dr.NutriCornell’s question from a different direction. 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.

One concrete data point for the thread. If you are going to change something, change one thing and give it long enough to express itself. Four weeks is the usual minimum for anything pharmacological on this board, and two weeks of data has told you almost nothing.

A narrower follow-up, since the general answer is now clear:

Was that from a primary source or from a summary of one?

OP back with an update, since a thread like this is useless without one.

Coming back a few months on. It held. Nothing dramatic to report, which is the report.