Foods With Sulfites: An Honest List (and the Hidden Sources Labels Skip)
Sulfites turn up most in dried fruit, wine, beer and cider, pickled foods, and many processed products, where they are added as a preservative. Fresh fruit and vegetables are not a source: regulators banned sulfites on fresh produce decades ago. The honest catch is that sulfites only have to be declared above a set level, so a "no sulfites" label is not a guarantee.
How to read this list (before you cut anything)
Three honest caveats first, because they will stop you cutting out food you never needed to:
- A reaction to sulfites is usually a sensitivity, not a true allergy. True IgE-mediated sulfite allergy is very rare; most people who react have a sulfite sensitivity or intolerance, which is dose-related but can still cause real symptoms (Allergy UK). It matters most for people with asthma: roughly 5 to 13% of people with asthma react to sulfites, compared with under 2% of the general population (Allergy UK).
- The label is not the whole story. In the UK and EU, sulfites must be declared when present above 10 mg per kilogram or litre; in the US the same 10 ppm threshold applies (Allergy UK; FARRP, University of Nebraska). Below that level they do not have to be listed, so a food can contain some sulfites without saying so.
- Fresh produce is not the culprit. Regulators removed sulfites from fresh fruit and vegetables after they were linked to severe, sometimes fatal, reactions in sulfite-sensitive asthmatics (FARRP, University of Nebraska). The risk sits in processed, dried, fermented, and preserved foods, not in a fresh apple.
So treat any list, including this one, as a map of likely suspects, not a rulebook.
The list
Grouped by how reliably the category carries added sulfites. Watch the label wording: sulfur dioxide, sulphur dioxide, sodium or potassium metabisulfite, sodium bisulfite, sodium sulfite, and E220 through E228 are all sulfites.
Reliably contain sulfites (preservative use)
| Food / drink | Why |
|---|---|
| Dried fruit (apricots, raisins, prunes) | Sulfites preserve colour and stop browning, especially in light-coloured dried fruit |
| Wine, beer, and cider | Sulfites are widely used in production and form naturally in fermentation |
| Pickled foods and vinegar | Used as a preservative |
| Bottled lemon and lime juice | Preserved to extend shelf life |
| Grape juice and some vegetable juices | Preservative use |
| Processed potato products (chips, dried or par-cooked mash) | Sulfites stop discolouration |
| Maraschino cherries | Colour and preservation |
| Gravies, sauces, and soups (especially powdered or ready-made) | Preservative in processed mixes |
Source for the categories above: Allergy UK.
Sometimes contain sulfites (check the label)
| Food / drink | Why it varies |
|---|---|
| Prawns and some processed seafood | Sulfites may be applied on the boat to prevent black spot |
| Tinned coconut milk | Sometimes preserved with sulfites |
| Pre-cut or bagged salads | May be treated, though fresh whole produce is not |
| Guacamole and dips | Preservative varies by product |
| Processed and cured meats | Preservative use varies |
Generally sulfite-free (fresh and simply prepared)
Fresh whole fruit and vegetables, fresh meat and fish, plain dairy, eggs, and freshly prepared grains are not sources of added sulfites, because sulfites are not permitted on fresh produce and are not needed in simply-prepared fresh food. "Fresh and unprocessed" is the through-line, more than any single food.
"Sulfite-free" claims: what they do and do not mean
A label that does not mention sulfites is not proof there are none, because the declaration rule only kicks in above the 10 ppm / 10 mg-per-litre threshold (Allergy UK). Naturally-occurring low-level sulfites in fermented drinks are a common example. If you react at very low levels, the label alone will not reliably protect you, which is why tracking your own response matters more than reading "free from" claims.
Why the same food affects you differently day to day
If a sulfite-containing food seems fine one day and a problem the next, that is expected, not contradictory. Sulfite reactions are dose-related, so it is often the total across a day, and how well your asthma is controlled at the time, that decides whether you react, rather than one glass or one handful in isolation. This is the same cumulative-load pattern we describe for other intolerances in the histamine intolerance guide. It is the main reason single-food blame so often fails.
Use the list as a hypothesis, not a sentence
The practical path: use this list to form suspicions, then confirm them by watching your own response over time, ideally with a clinician or dietitian, because there is no reliable blood or skin test for sulfite sensitivity (Allergy UK). Sulfites are regulated food additives, so where they are used above the threshold they will be on the label (EFSA).
See a clinician, and treat breathing symptoms as urgent. If sulfites trigger wheezing, chest tightness, or an asthma flare, that needs medical attention, and a suspected reaction belongs with a doctor, not a self-test. This list is for information only. GIMETRY is not a medical device and does not provide medical advice, diagnosis, or treatment.
If you want to see whether sulfite-containing foods actually line up with how you feel, GIMETRY lets you log meals and symptoms and compares them across time windows to surface the foods worth testing, accounting for the dose-related pattern a single-day diary misses. It surfaces suspects to discuss with a clinician; it does not diagnose.
Frequently asked questions
What foods are highest in sulfites? Dried fruit such as apricots and raisins, wine, beer and cider, pickled foods and vinegar, bottled lemon and lime juice, and many powdered or ready-made sauces and soups are the most reliable sources (Allergy UK).
Are fresh fruits and vegetables high in sulfites? No. Sulfites are not permitted on fresh fruit and vegetables, because they were removed from fresh produce after being linked to severe reactions in sulfite-sensitive asthmatics (FARRP, University of Nebraska). Processed and dried versions are a different story.
Does a label that does not mention sulfites mean there are none? Not necessarily. Sulfites only have to be declared above 10 ppm (10 mg per kilogram or litre), so a food can contain a smaller amount without listing it (Allergy UK).
Is a sulfite reaction an allergy? Usually not. True IgE-mediated sulfite allergy is very rare; most reactions are a sensitivity or intolerance that is dose-related, though they can still be significant, especially in people with asthma (Allergy UK).
How do I know if sulfites are the problem? There is no reliable blood or skin test for sulfite sensitivity, so it is worked out from your own pattern over time, ideally with a clinician or dietitian (Allergy UK). Watching your response across different foods and days is more useful than any single test.
What names should I look for on labels? Sulfur dioxide (or sulphur dioxide), sodium and potassium metabisulfite, sodium bisulfite, sodium sulfite, and the additive numbers E220 to E228 are all sulfites (EFSA).
Sources
- Allergy UK, Sulphites and Airway Symptoms factsheet (foods, asthma prevalence 5-13%, labeling threshold, no reliable test): https://www.allergyuk.org/resources/sulphites-and-airway-symptoms-factsheet/
- EFSA, follow-up of the re-evaluation of sulfur dioxide and sulfites (E220-228) as food additives (regulated additives, plain-language summary): https://www.efsa.europa.eu/en/plain-language-summary/follow-re-evaluation-sulfur-dioxide-e-220-sodium-sulfite-e-221-sodium
- FARRP, University of Nebraska, Sulfites - USA (FDA prohibition on fresh produce, 10 ppm declaration threshold, sulfite-sensitive asthmatic reactions): https://farrp.unl.edu/farrp-resources/regulatory/sulfites-usa/
How this was written. This article was drafted with AI assistance and reviewed by the GIMETRY editorial team for accuracy against the cited sources. Last reviewed: 2026-07-03. GIMETRY is not a medical device and does not provide medical advice, diagnosis, or treatment. It surfaces possible patterns to discuss with a qualified clinician; it does not identify the cause of your symptoms. Always consult a doctor or registered dietitian, especially before changing your diet.