Coffee has lot of toxins therefore is not that good, however coffee is and excellent chelator, it binds lot of copper, aluminum, and other metals, that is why whenever you drink coffee it assist you on going to the washroom as it remove the excess of copper (almonds and nut are rich on copper) and probably mercury you have in your blood and prevent your liver from produce enough bile that assist your bowels on get them going. Coffee in general is very bad for your health as it also dehydrates you as it is a diuretic, so better focus on lower your copper levels with zinc, at least 50mg a 4xday to see how you feel, then get a Hair mineral analysis so that you can verify you are high in these metal and probably in others as well as the why of your Candida problem.