The tongue is a complex organ, made up of multiple muscles which perform a variety of functions. A white coating on the tongue can often be easily resolved by performing good dental hygiene and re-examining your dental hygiene products. A white tongue coating can also be caused by poor diet and dehydration, so before performing steps to remove the coating, you may want to be sure that you are drinking enough water and eating healthy foods.
Check your dental hygiene products for harsh chemicals. Sometimes chemicals in mouthwash and toothpastes can damage the skin on the tongue and cause it to form a coating. Try using a mouthwash without alcohol and a toothpaste without sodium lauryl sulphate, a foaming agent.
Gently scrape your tongue with a tongue scraper. Doing this regularly can help to decrease the white coating on the tongue and can also help with bad breath.
Take an acidophilus supplement. A white tongue coating can be a symptom of oral thrush, a yeast infection in the mouth. One way to fight a mild yeast infection is to take acidophilus supplements. Acidophilus can also be found in some yoghurts, though you should check the labels to be sure.
Take grapefruit seed extract. If your white coating is caused by thrush, this also helps to remedy the situation.
If your coating persists or worsens, talk to your doctor or dentist as it could be a sign of a more severe health problem.