1If your tongue is Strawberry Red in color
Basically, to have normal Papillae on the surface of the tongue, the body must be rich in Vitamin B12. Any deficiency in Vitamin B12 makes the tongue lose these Papillae giving it a smooth look. Losing Papillae causes pain and burning sensation when hot and spicy foods are eaten since the raw tongue gets exposed. While non-vegetarian eaters get compensated with Vitamin B12 eating meats of certain types, vegetarians are prone to Vitamin B12 deficiency. Vegetarians who happen to notice a strawberry red tongue must seek medical advice on the supplements to be taken to get rid of the condition. Beware this condition can also be caused when the GI Tract suffers from an autoimmune disease where the vitamins do not get absorbed by the stomach.