I always catch the 2nd morning void because at the time of the first one I'm
still waking up, still adjusting to life. On my 2nd void I fill a cup
which measures 1 1/2 measuring cups - so, that's my minimum. Many days
that's all I ingest, though there are times I'll drink up to 4 and 5 measuring
cups full. During these times it seems to suppress my appetite and give me
more energy but my days are structured such that I don't do that very often.