Eat fermented foods and drink probiotic beverages to bring your inner ecosystem back into balance. 1  Use the Principle of 80/20 at every meal. 2  Warm up your digestion with cooked foods. 3  Add herbs and spices to improve digestion. 4  Drink warm ginger tea 20 minutes before a meal to benefit digestion and relieve nausea.
A black hairy tongue is caused by too much bacteria or yeast growth in the mouth. The bacteria build up on tiny rounded projections called papillae. These lie along the surface of the tongue. Instead of shedding as they normally do, the papillae start to grow and lengthen, creating hair-like projections.
You may be thinking youâve eaten something strange, or that you are having an allergic reaction! This is actually not a rare side effect of Pepto Bismol however â read on to find out why your tongue is black!