What about something yogurt-based or those concentrated cordial-type cooldrinks that you have to add water to?
Even diluted apple cider vinegar... which might have other health benefits as well.
(Careful with too many sour drinks, though, it can affect your teeth's enamel, IIRC.)
Even diluted apple cider vinegar... which might have other health benefits as well.
(Careful with too many sour drinks, though, it can affect your teeth's enamel, IIRC.)