Concentrated Celery Juice
Although labeled 'natural' or 'no nitrites added', concentrated celery juice is used specifically because it supplies high levels of nitrate that ferment to nitrite. The resulting cured meats can contain nitrite levels comparable to traditionally cured products, which IARC classifies as Group 1 carcinogenic (processed meat).
What it is
Concentrated juice from celery, naturally rich in nitrate; commonly used as a 'natural' source of nitrate in cured meats.
Curing agent — provides nitrate (converted to nitrite by added cultures), flavor and color in cured meats.
Why it's flagged
- Nitrate-curing-vector use is captured via en:e251 / en:sodium-nitrate when nitrite forms during curing. Bouillon/flavor uses are not concerning.
- Functions as added nitrite/nitrate source
- Processed meat exposure
What regulators actually say
"Processed meat was classified as carcinogenic to humans (Group 1), based on sufficient evidence in humans that the consumption of processed meat causes colorectal cancer."
"Products containing natural sources of nitrites/nitrates, including celery powder or juice, must be labeled to identify these ingredients."
Regulatory status
United States — FDA
Permitted as natural ingredient; USDA-FSIS allows under 9 CFR 319 as alternative curing source
European Union — EFSA
Use of vegetable nitrate sources permitted; nitrite/nitrate intake limits apply
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