Rennet Casein
Rennet Casein appears in 244 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
Rennet Casein appears in 244 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.
- 244
- catalogued products
- #1,707
- usage rank of 247,206
- 37
- named brands represented
- 43%
- 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.
Reading this ingredient record
Audit the co-occurring flags first
89.3% of the linked products contain at least one separately flagged ingredient, making co-occurrence the dominant follow-up question. That figure does not identify Rennet Casein as the trigger. Open records such as 3 meat sausage pepperoni & ham pizza, 3 meat; Better Valu, Individual Hamburger Pizza; Bob Evans six cheese pasta and inspect which ingredient row carries the caution marker. The 57.7/100 product average is therefore a triage signal for this surrounding formulation set, not an ingredient verdict. Its 43% average label depth helps locate the term when checking the package.
89.3% of linked products contain a separately flagged ingredient
Processing is unusually concentrated here: Group 4 accounts for 242 of 244 NOVA-tagged records. That describes the surrounding products, not the substance. For a useful comparison, hold category and processing level constant, then inspect which named component changes alongside the caution flag; otherwise the product mix will confound the ingredient question.
Next check: open the lowest-scoring linked formulation and locate the exact caution-marked component.
Rennet Casein sits in the busiest tenth of the catalog (#1,707 / 247,206)
- Usage rank
- #1,707
- of 247,206 ingredients that appear in at least one catalogued product, tied with 5 others that also appear in exactly 244 products, listed in more products than 99.3% of them.
- Typical depth in an ingredient list
- 43%
- Averaged label depth puts Rennet Casein in the upper half of the list (43% of list length, mean slot 30.8). Compound ingredients and OCR noise mean this cannot stand in for quantity.
Derived by this site from the ingredient lists of every catalogued product (Open Food Facts), recomputed on each data refresh. 247,206 ingredients have at least one appearance and are ranked here. Usage and list position describe prevalence, not safety.
What else is usually in the same product as Rennet Casein
Across the 244 products on this site that list Rennet Casein, these flagged additives appear alongside it most often. The comparison column is how often each one appears across every product with a parsed ingredient list, so the two figures are measured over the same set. Sodium Nitrite shows up about 24.3x more often with Rennet Casein than in the catalogue at large.
| Additive | Shared products | Share of Rennet Casein products | Share of all products |
|---|---|---|---|
| Sodium Nitrite | 142 | 58.2% | 2.4% |
| Titanium Dioxide | 125 | 51.2% | 2.1% |
| TBHQ | 117 | 48% | 0.5% |
| BHT | 115 | 47.1% | 1.1% |
| BHA | 113 | 46.3% | 0.7% |
Co-occurrence describes what manufacturers formulate together. It is not a claim that these additives interact, and it carries no regulatory meaning. Counted over products with parsed ingredient lists; Open Food Facts, 2026-09-01.
How do the sampled products compare?
Each point is one of the 16 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 Rennet Casein
Products Containing Rennet Casein
High-volume slice (16 of 244) for products naming Rennet Casein:
Peer ingredients with comparable catalog mass (near “Celery Seeds”)
Top-decile company for Rennet Casein: 244 listings averaging 57.7/100. Comparable product-count neighbours: Celery Seeds · Ferrous Sulfate Or Reduced Iron · Ginger Extract.
Similar product count
Nearest other ingredients by Open Food Facts product count (floored at ≥50).
Similar mean product score
Mean product-score neighbours (≥50 scored products), kept separate from the product-count peers above.
Next steps from the Rennet Casein page
Use the 244-product footprint and source labels as a starting point, then inspect the records most relevant to your question.
- Open the product sample for Rennet Casein and read how the term sits on real packages. Browse linked labels
- Place Rennet Casein next to “Ferrous Sulfate Or Reduced Iron” (or another peer) using the same FDA/CSPI and prevalence fields. Browse ingredient records
- Check the methodology for how FDA SAFFA, CSPI, and Open Food Facts rows are joined on this site. See source joins
This page describes published source classifications and product-label coverage. It is not dietary, allergy, or medical advice.
Questions readers ask about Rennet Casein
How should I read safety signals when Rennet Casein sits in heavily flagged products? ▼
89.3% of linked products contain at least one separately flagged ingredient, so the first task is locating which row carries the caution marker — not assuming Rennet Casein is the trigger. None of that replaces a product-, dose-, allergy-, or person-specific determination.
Which product shelves show up most often with Rennet Casein? ▼
Rennet Casein ranks in the top decile by product count (#1,707 of 247,206), appearing in 244 indexed products led by Meals. The sample list below is a slice of that footprint, not the full universe.
Why is Rennet Casein so common on ingredient lists? ▼
The source record does not name a technical effect, yet Rennet Casein appears in 244 products (#1,707 usage rank). High prevalence here describes formulation frequency, not an approved use level.
Regulatory status: FDA SAFFA (Rennet Casein). 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.