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.
The most obvious sign of a black tongue is discoloration of the tissue on the tongue. Basically, this occurs when the papillae (small raised portions) of the tongue elongate for some reason and accumulate material. The collected matter in the tongue usually produces a dark appearance, but âblack tongueâ could also lead to a white, green, brown, or tan appearance, depending on the root cause. Your tissue may also take on a textured, âhairyâ feeling.