I have drunk a cup of coffee.
Well, half a cup diluted down with half a cup of milk and two sugars.
It was pretty horrible, but bearable.
Don't feel any different. How long does it take to kick in?
Update on Coffee-Acclimatization.
By about the 10th mug I find I'm looking forward to it rather than treating it as a chore.
Started reducing the milk (well, oat-milk) dilution and increasing the brew-time and amount of grounds used to make it stronger.
Also reducing sugar content.
Progress seems faster than I expected. I might even actually like the stuff and be trying more roasted varieties by the end of the month.