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.
The name black hairy tongue may sound scary, but the condition is harmless. Black hairy tongue is caused by bacteria or fungi in the mouth, which make the tongue appear black and hairy. It's easily remedied by good old-fashioned oral hygiene.