Hi Richard, sorry you are quite correct. the maths was wrong. Yep, splitting up a 50 mg capsule into thirds would give around 16 mg. Sorry for the confusion.

I should have said quarters!

It can get confusing, but you get used to it after a while. It's more annoying than confusing, once you get the dose relatively right. It's hard to get it perfect, as tipping out the powder, flattening it out into an even shape, then splitting it is never going to be ideal, but it's near enough and the extra mg, or less of a mg, should not be overly significant, so long as it's more-a-less as even as possible.

25 mg capsules are obviously far easier, but mostly they are only available in 50 mg or more.