Cu
Cu appears in 8 indexed US food products. No FDA SAFFA status or CSPI rating is attached in this snapshot, so this page reports prevalence rather than a safety verdict.
What the data can answer
Cu appears in 8 catalogued products, but this snapshot has no FDA SAFFA status or CSPI Chemical Cuisine rating attached to it. This page therefore cannot answer whether the ingredient is safe from those sources. It can show how often it occurs, where it tends to sit on labels, and which kinds of products contain it.
- 8
- catalogued products
- #17,814
- usage rank of 247,206
- 6
- named brands represented
- 100%
- average depth down ingredient lists
Catalog prevalence comes from Open Food Facts ingredient lists. FDA SAFFA and CSPI Chemical Cuisine labels are shown only when the source record contains them.
Cu sits in the busiest tenth of the catalog (#17,814 / 247,206)
- Usage rank
- #17,814
- of 247,206 ingredients that appear in at least one catalogued product, tied with 1,731 others that also appear in exactly 8 products.
- Typical depth in an ingredient list
- 100%
- Mean relative depth 100% across 8 parsed labels, slot 16.4 on average. Cu tends to sit near the end of the captured list. Depth is location on the label, not a measured dose.
Computed from parsed product ingredient lists (Open Food Facts). The ranking covers 247,206 ingredients that appear at least once. Neither usage rank nor label depth is a safety clearance.
How to use this page
Use prevalence before concern
Only 12.5% of linked products carry any separately flagged ingredient. The stronger differentiator here is market placement: Cu spans 6 named brands and is led by the Undefined group. Start with Coffee Cake Bites; Deli Egg Salad; Mead Johnson Nutrition, Enfagrow, Milk Drink when comparing real formulations. Because the flagged component may be something else, neither the low co-occurrence rate nor the 96.9/100 product average proves this ingredient safe.
6 named brands carry this ingredient
The processing evidence is heterogeneous rather than a single shelf pattern: the largest NOVA group contains 4 of 6 classified products, leaving a meaningful remainder elsewhere. This breadth is why the page reports label depth, category, and product examples separately. Those dimensions help locate comparable products; combining them into a stronger safety claim would hide the variation the catalog actually contains.
Next check: compare label position across two brands before treating prevalence as equivalent exposure.
How do the sampled products compare?
Each point is one of the 8 sampled products listed below: its overall safety score against how many separately flagged ingredients its label carries. Bubble size is the number of ingredient rows the label actually resolved to.
Safety score vs. flagged-ingredient count for products containing Cu
Products Containing Cu
A sample of 8 high-volume listings among the 8 indexed products containing Cu:
Cu vs other top-decile catalog footprints
Top-decile company for Cu: 8 listings averaging 96.9/100.
Similar mean product score
Score-axis peers only, mean screening score among ingredients with ≥50 scored products, not a second count list.
Using the Cu evidence
Use the 8-product footprint and source labels as a starting point, then inspect the records most relevant to your question.
- Review the sampled product records that list Cu to see how the ingredient appears in actual labels. See listed products
- Browse another ingredient record and keep the same FDA/CSPI and prevalence fields in view. Browse ingredient records
- Check the methodology for how FDA SAFFA, CSPI, and Open Food Facts rows are joined on this site. Open methodology
This page describes published source classifications and product-label coverage. It is not dietary, allergy, or medical advice.
Cu — common follow-ups
Why is there no FDA/CSPI verdict on Cu? ▼
This snapshot has no FDA SAFFA status or CSPI Chemical Cuisine rating attached to Cu, so PlainFoodSafe does not present a source-backed safety verdict. The page reports catalog prevalence (#17,814 of 247,206 ingredients) and label position instead.
Which product shelves show up most often with Cu? ▼
Cu ranks in the top decile by product count (#17,814 of 247,206), appearing in 8 indexed products led by Undefined. The sample list below is a slice of that footprint, not the full universe.
Why is Cu so common on ingredient lists? ▼
The source record does not name a technical effect, yet Cu appears in 8 products (#17,814 usage rank). High prevalence here describes formulation frequency, not an approved use level.
Regulatory status: FDA SAFFA (Cu). Safety ratings: CSPI Chemical Cuisine; product presence: Open Food Facts via PlainFoodSafe (September 2026). Figures are computed from those sources, no editor-typed counts. Methodology · State regulations.