hmm, wudnt b so sure, only cos it has acid and sweeteners in prob and that mite knock u outa ketosis, but im sure a pro will b along soon to let ya know 4 sure!
you can have the perfectly clear red apple & the strawberry & kiwi cos they have malic acid in them & not citric acid, i think you will find the volvic waters have citric acid in them & this may take you out of ketosis.
hope that helps
xx