coffee doesn't ruin, it holds you back. u can get heart problems if you do it w fasting, and U could deplete Ur adrenals. for breath: squishing mint or citronella herbal infusion helps, together w scrubbing Ur tongue w one of these Oral care tongue scrappers. rubbing a lemon slice on Ur tongue helps, rinse afterwards. rubbing ur teeth w baking soda powder or squishing baking soda in water help too. gum can make u hungry and make u salivate. try increasing your water. Aspartame is really bad even while eating, it's an "excitotoxin" -- look it up on u_tube .