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).
If your tongue is stained black or dark brown it may be caused by medications and certain foods/drinks. Drinking several cups of coffee or tea per day may stain the tongue; some people who supplement with green drinks containing chlorophyll may notice a very green tongue.
This gives the tongue a rough or âhairyâ appearance. This rough surface creates a place for bacteria and yeast to thrive. This can discolor your tongue, causing a green hue. A color change is even more common after eating certain types of foods or drinks, or using certain products. Other symptoms of hairy tongue include: a burning sensation on the tongue