My tongue has a slight greenish/whiteish colour, not too obvious only when i swallow all my saliva is it really obvious, just wondering what this could be?

? food remnant: A number of things can produce this coloration, and my first recommendation is to brush your tongue. It is highly convoluted and harbors a host of bacteria. Consider what you may have been eating and then get back to us.

Lack of Scraping of Tongue can cause all deposited on the tongue which could be white to stained from food and drinks . Must use Tongue blade on Tongue to remove the deposits which also helps improve oral health and bad breath . If it persists even after scrapping of Tongue ,you should see your Dentist