Vitamin C, tseem hu ua ascorbic acid, yog dej-soluble vitamin uas tseem ceeb heev rau tib neeg noj qab haus huv. Nws muaj nyob rau hauv ntau yam khoom noj, xws li citrus txiv hmab txiv ntoo (xws li txiv kab ntxwv, txiv qaub), strawberries, zaub (xws li txiv lws suav, kua txob liab).