Why I switched FROM US vendors TO verified Chinese vendors — what worked for you?

Dr.NutriCornell said:

Order of operations matters more than any single choice here: establish a baseline, change one thing, wait long enough for it to express itself, then…

Agreed on the substance. I would put less weight on the timescale, because two months of anything is not enough to distinguish a trend from a wobble.

Happy to go further on any of that.

NurseLeah_Nash said:

Right, and one flattering data point from a group buy is not consistency.

Thank you for spelling out the reasoning rather than just the conclusion.

Dr.NutriCornell said:

Order of operations matters more than any single choice here: establish a baseline, change one thing, wait long enough for it to express itself, then…

I read this differently from Dr.NutriCornell, on substance rather than tone. Filing an objection on the n=1 problem. Personal experience is genuine evidence about one person and very weak evidence about anybody else, and this thread keeps promoting the first into the second.

That is the short version; the long version is somebody else's post.

Adding the numbers, since they settle part of this. For anyone reading later: the numbers in this thread are worth checking against a primary source before you act on them, including mine. Half the figures circulating in this community trace back to a secondary summary that dropped a qualifier.

Moderator note: reminder that nothing in this thread is medical advice, and that clinical claims need a source.