Coffee and Vitamins

GkMusic

Good morning! My morning routine has been the same for several years. Wake up, have breakfast with my vitamins, and drink black coffee once I get to work. Last night I started thinking about that routine and the fact that I am taking multi-vitamins about an hour before I drink my coffee (a diuretic). I did a few searches on the absorption of vitamins into the body when drinking coffee, but didn't find any solid evidence one way or the other. Do you think taking vitamins and drinking coffee an hour later is defeating the purpose of taking vitamins in the first place?