(Bradenton) - I often hear someone complain that they can't drink certain types of wine because the sulfur dioxide contained in the wine gives them a headache. Next, that same person says "I only drink wines that don't contain any sulfites." Well, there is no such thing as a wine that doesn't contain any sulfites because sulfites occur naturally during the fermentation process, but what may vary in wine is the amount of sulfur dioxide that the winemaker adds during the winemaking process.