and tongue coating could be due to the following reasons: nasal infections, oral infections or gastrointestinal infections
1. Those with nasal congestion
or chronic sinusitis
are more likely to mouth breathe at night People who sleep with their mouth open are more likely to suffer from bad breath and coated tongue. If you have these conditions you can try using a nasal decongestant spray.
2. Get yourself evaluated by a dentist
to rule out gum infections. Learn proper brushing techniques.
3. Another important cause of bad breath could be the presence of a bacteria called Helicobacter Pylori
and gastric reflux
etc. This needs to be evaluated by the gastroenterologist, who will check for the presence of H. pylori and prescribe the required antibiotics. Brush your teeth after every meal and clean your tongue using a tongue cleaner. This will reduce the coating to a great extent.
Other general measures that you could follow would be as follows.
Avoid certain foods like onion, garlic, preserved foods etc.
Eat food at proper times and do not go on crash diets.
Avoid high protein diets.
Always rinse your mouth out after consuming fish, meat, milk or milk products.
Use antiseptic mouth washes.
These measures would help you combat your problem than trying to coat your tongue with prebiotic capsules. That will not help in any way.
Hope I’ve answered your query.