Sulfur dioxide in meat and its health effects
What it found
Taking in sulfites has been linked to allergic reactions, vitamin shortages, and changes to gut and mouth bacteria.
Some meat products are a major source of sulfur dioxide exposure for adults and young people.
What they found
Studies in people
Allergic and adverse reactions
Taking in sulfites has been linked to hypersensitivity, allergic diseases, and vitamin deficiency in people. It may also upset the balance of bacteria in the gut and mouth.
Meat as an exposure source
Several studies measured sulfite levels in meat and meat products. Some meat preparations turned out to be one of the main sources of sulfur dioxide exposure, especially for adults and young people.
Other findings
Where sulfites are used
Sulfites are added to dried fruits and vegetables, seafood, juices, drinks, and some meat products. They help keep food from browning and act as antioxidants.
Rules limit use in meat
Many countries closely regulate these additives. The rules specifically restrict how much can be used in meat products.
What the authors conclude
- They note that sulfites serve many useful roles in food but can trigger unwanted health reactions.
- They point out that certain meat preparations are a key source of sulfur dioxide exposure for adults and young people.
- They highlight the need to understand how sulfites chemically interact with the natural components of meat.
How it was done
Sulfites release sulfur dioxide and are added to many foods to stop browning, preserve color, and fight microbes. Because they can cause unwanted reactions, their use is closely controlled in many countries.
The authors gathered and examined existing research on sulfites in meat and meat products. They looked at how these additives work, how they are regulated, and what health effects have been reported. They also focused on how sulfites interact with other parts of meat.
What it can’t tell you
- We summarised it from the abstract only.
- This work gathers past research rather than testing new treatments, so it cannot prove that sulfites directly cause these health problems.
- Studies that measure sulfite levels in food and link them to exposure can show a connection but not a direct cause of illness.
Who paid
- Authors work at
- Zooprophylactic Institute of Puglia and Basilicata, Italy
The paper
- Title
- Sulfites in meat: Occurrence, activity, toxicity, regulation, and detection. A comprehensive review
- Type
- ReviewThe authors read earlier studies and describe what they found. It isn’t a new study.
- Evidence
- Studies in people
- Summarised from
- Abstract only
- Cite
- D'Amore T, Di Taranto A, Berardi G, et al (2020). Sulfites in meat: Occurrence, activity, toxicity, regulation, and detection. A comprehensive review. Comprehensive reviews in food science and food safety. doi:10.1111/1541-4337.12607PubMed 33336981DOI
Summary written 30 Sep 2026. Check it against the paper before it changes what you eat. How we summarise papers · Report an error