What do the Clean, Low, Watch and Swap levels mean?

They are cut from a continuous concern level the app computes from the sourced claims that the chosen evidence lens shows: each claim counts its concern class, tier weight, confidence and dose relevance, combined worst-first with a decay so one serious finding outweighs many small ones, then scaled by how much of the substance reaches you in this use. Clean is below 0.35, Low below 1.1, Watch below 2.0 and Swap above that, on a 0 to 3 scale.

Is Sulfur Dioxide safe in food and drink?

Q: Is sulfur dioxide safe in food and drink?

Under the app's default Cautious lens, sulfur dioxide in food and drink rates Swap: the app would put this near the top of your swap plan. 4 sourced concerns count (irritant · allergen, consensus tier; irritant · allergen, consensus tier; metabolic, emerging tier). This is research with sources, not medical advice.

Food additives1 use researched4 sourced claims

Where it turns up: preserves wine and dried fruit. Detox My Life researched sulfur dioxide under one use, because the same substance means something different in each use. Every claim below carries its evidence tier, how sure the research is that it applies here, and the sources it cites. The level is computed by the app's own deterministic engine, so the page says exactly what the app would.

Level by use and lens

Use	Mainstream	Cautious (default)	Based	Concerns · favour · fringe
Eaten or drunk	Watch	Swap	Swap	4 · 0

Mainstream shows consensus claims only; Cautious adds emerging research; Based adds fringe claims, labelled as such. The last column counts, under Cautious, the sourced concerns, the findings in its favour and the fringe claims Based would add.

Safer swaps: the app's swap catalog covers the products this turns up in: Alcohol. Alternatives are always types, never brands.

Eaten or drunk Swap

Under the default Cautious lens sulfur dioxide in food and drink rates Swap: the app would put this near the top of your swap plan. Mainstream (consensus only) rates it Watch; Based (adds the fringe) rates it Swap. Researched 2026-09-03.

Sourced concerns (4)

ConsensusIrritant · allergenconfidence 90%

Ingestion of sulfur dioxide and sulfites can trigger allergic-like reactions, including asthma attacks, breathing difficulties, wheezing, chest tightness, headaches, nausea, hives, and in severe cases, anaphylactic shock, particularly in susceptible individuals, especially asthmatics.

Why here: Sulfur dioxide is widely used as a preservative and antioxidant in various foods and beverages, such as dried fruits, wines, fruit juices, and pickled vegetables, leading to dietary exposure.
What would have to be true: Ingestion of foods and beverages containing sulfites/sulfur dioxide, particularly at concentrations of 10 parts per million (ppm) or more.
The other side: For the general population, sulfur dioxide is generally considered safe when used as a food additive in accordance with Good Manufacturing Practice (GMP) and within specified regulatory limits. Regulatory bodies like JECFA, FDA, and EFSA have evaluated its safety and set limits or require labeling for sulfite content.

Sources the engine cites:

A Closer Look at Sulphur Dioxide in Foods — cfs.gov.hk (2021) · regulator or public body
Sulfur Dioxide | Medical Management Guidelines | Toxic Substance Portal — cdc.gov (2022) · regulator or public body
Food safety risk assessment for estimating dietary intake of sulfites in the Taiwanese population — nih.gov (2020) · regulator or public body
Sulfites: safety concern for high consumers, but data lacking - EFSA — europa.eu (2022) · regulator or public body
1 web article (food-detektiv.de), linked in the app.
5 community or commercial pages, not counted here.

ConsensusIrritant · allergenconfidence 80%

Ingestion of sulfur dioxide, even in small amounts or large quantities, can cause irritation of the gastrointestinal tract, leading to symptoms such as nausea, vomiting, abdominal pain, and diarrhea.

Why here: Sulfur dioxide is used as a food preservative in various food products and beverages, making ingestion a direct route of exposure.
What would have to be true: Ingestion of foods and beverages containing sulfur dioxide/sulfites.
The other side: For the general population, sulfur dioxide is generally considered safe when used as a food additive in accordance with Good Manufacturing Practice (GMP) and within specified regulatory limits. Regulatory bodies like JECFA, FDA, and EFSA have evaluated its safety and set limits or require labeling for sulfite content.

Sources the engine cites:

Adverse reactions to the sulphite additives - PMC - NIH — nih.gov (2012) · regulator or public body
1 web article (gasdetection.com), linked in the app.
1 community or commercial page, not counted here.

EmergingMetabolicconfidence 70%

Some researchers suspect that the consumption of foods preserved with sulfur-containing substances could be causally related to some inflammatory, chronic bowel diseases, potentially due to sulfur-reducing Desulfovibrio bacteria damaging the intestinal mucosa. Additionally, the additive sodium metabisulphite, which releases sulfur dioxide, is suspected of disrupting intestinal mucosa cell functions and promoting inflammatory processes.

Why here: Sulfur dioxide and its derivatives are used as food preservatives, leading to their ingestion as part of the diet.
What would have to be true: Consumption of foods preserved with sulfur-containing substances, such as sodium metabisulphite.
The other side: The pathogenesis of adverse reactions to sulfites has not been clearly documented, and it is unlikely that sulfite reactions are allergic and immunity-mediated or produce anaphylactic reactions in all cases. The Joint Food and Agriculture Organization / World Health Organization Expert Committee on Food Additives (JECFA) has evaluated the safety of sulfur dioxide and established an acceptable daily intake (ADI) of 0–0.7 mg/kg body weight/day.

Sources the engine cites:

Food safety risk assessment for estimating dietary intake of sulfites in the Taiwanese population — nih.gov (2020) · regulator or public body
1 web article (food-detektiv.de), linked in the app.

EmergingMetabolicconfidence 70%

Dietary intakes of sulfites could be a safety concern for high consumers of foodstuffs containing these additives, as the European Food Safety Authority (EFSA) found insufficient toxicity data to derive an Acceptable Daily Intake (ADI) and calculated margins of exposure (MOE) below 80 for high consumers in most population groups, indicating potential safety concerns.

Why here: Sulfites, including sulfur dioxide, are added as preservatives and antioxidants to a range of foodstuffs such as dried fruit and vegetables, potato-based products, beer, wine, and fruit juices.
What would have to be true: High dietary consumption of foods and beverages containing sulfites (E220-E228).
The other side: The Joint Food and Agriculture Organization / World Health Organization Expert Committee on Food Additives (JECFA) has established an ADI of 0–0.7 mg/kg body weight/day for sulfur dioxide, based on a no observed effect level (NOEL) of 70 mg/kg BW/day from long-term studies in rats. For the general population, small amounts of sulfur dioxide are considered safe under current regulations.

Sources the engine cites:

Sulfites: safety concern for high consumers, but data lacking - EFSA — europa.eu (2022) · regulator or public body
Food safety risk assessment for estimating dietary intake of sulfites in the Taiwanese population — nih.gov (2020) · regulator or public body
1 web article (agrolab.com), linked in the app.

Not researched here

The engine has no dossier for sulfur dioxide when cooked with heat, in cold food, as a finishing ingredient, in heated food packaging or other uses. The app researches an ingredient for the use it infers from your product, so a scan fills these in; this page only shows what has already been researched and source-verified.

This is research, not medical advice. Detox My Life shows sourced claims sorted by evidence tier. It does not diagnose, treat, or tell you to start or stop anything. Talk to a qualified professional about your health.

Scan your own. The app reads any product label with your camera, works out how you are about to use it, and researches every ingredient for that use with live sources. Every scan adds to a Detox Score for your home, where 50 is a typical home in your region, and a plan of next swaps.

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