What are sulfites in wine? Are sulfites causing my red wine headaches? The short answer is sulfites are not the cause of your wine headaches, and they’re not causing your hangovers, either. Sulfites are used to preserve a wine and occur in wine at much lower levels than you might assume. This post will help clarify why there are sulfites in wine, how many sulfites are in wine, what’s actually causing your wine headaches, and how to best avoid a wine headache.
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