Redwood Foods versions of these are sold in Holland and Barrett, Asda and wholefoods shops. Gravy granules. Just because you're feeding a vegetarian or vegan doesn't mean they have to have 'vegetarian' gravy (you know, the thin watery stuff that looks like a dissolved vegetable stock cube).
What You Should Do. Brown or Hairy. Brown tongue or hairy tongue is caused by poor diet and, most often, by poor dental hygiene. The area at the back of the tongue catches food debris, and over time, the debris builds up, causing a brown or brown hairy appearance. Almost all foods can potentially cause brown, hairy tongue. Brush your tongue gently with a soft bristle toothbrush or a tongue scraper.
Other than the appearance of the tongue, most people with black hairy tongue don't have any symptoms or feel any discomfort. The exception is when there is too much growth of the yeast Candida albicans, which can cause a burning sensation on the tongue. This burning sensation is called glossopyrosis.ut the tongue can also turn brown, yellow, green or a variety of other colours. Certain lifestyle habits and conditions can make people more likely to develop black hairy tongue. They include: 1  Poor oral hygiene. 2  Smoking tobacco. 3  Drinking a lot of tea or coffee.