Yes. But excess caffeine can drop blood sugar levels and leave you craving sweets. If you’re addicted to caffeine, you must minimize consumption. The best way to do this is to segue from the high-octane stuff to decaf, which you can enjoy with cream. If you are not addicted to caffeine, you can probably still have one or two cups of regular coffee a day without experiencing cravings. Remember that most diet sodas also contain caffeine.