Optimum health in general or optimum health when trying to fight off candida? Caffeine is not "bad for your health", per se. Remember, one person's poison is another person's cure (and vice versa). You may find that moderated caffeine is actually benefitial for some ailments, even if it does the opposite for others.

Caffeine is not bad for you. Chocolate is not bad for you. Wheat is not bad for you. Milk is not bad for you. Sugar is not bad for you. It's when combined with a multitude of other factors that these foods earn such a bad name.

Abstaining from all wheat and yeast is an extremely radical approach. Though it may effectively treat some ailments, I can't help but wonder if it hinders another ailment as a result (even if only spiritially/emotionally). For every action there is an equal and opposite reaction. I might cure my eczema by abstaining from all wheat products evermore, but will I be better off consuming bland, tasteless, expensive, difficult-to-find foods for the rest of my life? What's worse, mild eczema, or eating nothing but wafers from now on? I have to believe that there is something ELSE wrong with the body if one has to remove all wheat and yeast (i.e., NORMAL foods) from their diet.