White Coating on Tongue: Causes, Remedies & Prevention

Question
What causes a white coating on my tounge? I brush my tounge at least 3 time daily but it still has a white coating on it instead of being pretty pink.

Answer
This is due to poor resistance and gastrointestinal imbalance which would improve with a high potency B complex daily and acidophilus bifidus three times a day possibly as yogurt. Also stop all sugar and wheat in the diet for 3 months and drink more water and cranberry juice. OK?

see this website:
http://www.nigms.nih.gov/news/science_ed/chemhealth/