THE TRUTH: Salcito said she often hears people say they only drink white wine because they are allergic to sulfites. In reality though, white wines actually contain more added sulfur dioxide than reds, she explains. Sulfites occur naturally during the fermentation process, so all wines — red, white, and rosé — contain some level of them. That being said, the amount of sulfites in any bottle of wine is actually quite small. More sulfites exist in common foods like eggs, raisins, and even ketchup. "if you drink any decently made wine, there are less sulfites than in most condiments that you buy everyday," explains Wilson. If you're worried about sulfites, Salcito suggests drinking organic wines, which generally contain very low levels.