L-citrulline
L-citrulline appears in 73 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
L-citrulline appears in 73 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.
- 73
- catalogued products
- #3,864
- usage rank of 247,206
- 38
- named brands represented
- 27%
- 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.
What this page can and cannot answer
Audit the co-occurring flags first
56.2% of the linked products contain at least one separately flagged ingredient, making co-occurrence the dominant follow-up question. That figure does not identify L-citrulline as the trigger. Open records such as Amino Whey Pro Advantage Non-denatured, Grass-fed Whey Protein; AMINO. ENERGY Whacky Watermelon Flavor; AMINOLEAN ENERGY and inspect which ingredient row carries the caution marker. The 87.7/100 product average is therefore a triage signal for this surrounding formulation set, not an ingredient verdict. Its 27% average label depth helps locate the term when checking the package.
56.2% of linked products contain a separately flagged ingredient
Processing is unusually concentrated here: Group 4 accounts for 65 of 65 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.
L-citrulline: top-decile catalog footprint (#3,864 of 247,206)
- Usage rank
- #3,864
- of 247,206 ingredients that appear in at least one catalogued product, tied with 32 others that also appear in exactly 73 products, listed in more products than 98.4% of them.
- Typical depth in an ingredient list
- 27%
- Mean relative depth 27% across 73 parsed labels, slot 8.6 on average. L-citrulline tends to sit in the upper half of the list. Depth is location on the label, not a measured dose.
Ranks use Open Food Facts ingredient rows on this site’s refresh cycle. 247,206 ingredients with ≥1 product appearance enter the ranking. Prevalence and list depth are catalog facts, not toxicology.
What else is usually in the same product as L-citrulline
Across the 73 products on this site that list L-citrulline, 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. Sucralose shows up about 19.8x more often with L-citrulline than in the catalogue at large.
| Additive | Shared products | Share of L-citrulline products | Share of all products |
|---|---|---|---|
| Sucralose | 39 | 53.4% | 2.7% |
| Acesulfame Potassium | 19 | 26% | 1.8% |
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 L-citrulline
Products Containing L-citrulline
16 busy labels from the 73 indexed products that list L-citrulline:
Peer ingredients with comparable catalog mass (near “Added To Retain Freshness”)
Top-decile company for L-citrulline: 73 listings averaging 87.7/100. Comparable product-count neighbours: Added To Retain Freshness · Anti Caking Agent · Chiles.
Similar product count
Nearest other ingredients by Open Food Facts product count (floored at ≥50).
Similar mean product score
Score-axis peers only, mean screening score among ingredients with ≥50 scored products, not a second count list.
Using the L-citrulline evidence
Start from L-citrulline's 73 catalogued appearances and the attached source fields, then open the product rows that match your use case.
- Check the listed products containing L-citrulline before treating the aggregate count as a personal conclusion. Browse linked labels
- Place L-citrulline next to “Anti Caking Agent” (or another peer) using the same FDA/CSPI and prevalence fields. Open a peer record
- See the join rules behind screening scores before reading them as dietary advice. See source joins
This page describes published source classifications and product-label coverage. It is not dietary, allergy, or medical advice.
L-citrulline — common follow-ups
How should I read safety signals when L-citrulline sits in heavily flagged products? ▼
56.2% of linked products contain at least one separately flagged ingredient, so the first task is locating which row carries the caution marker — not assuming L-citrulline is the trigger. None of that replaces a product-, dose-, allergy-, or person-specific determination.
Which product shelves show up most often with L-citrulline? ▼
L-citrulline ranks in the top decile by product count (#3,864 of 247,206), appearing in 73 indexed products led by Dietary supplements. The sample list below is a slice of that footprint, not the full universe.
Why is L-citrulline so common on ingredient lists? ▼
The source record does not name a technical effect, yet L-citrulline appears in 73 products (#3,864 usage rank). High prevalence here describes formulation frequency, not an approved use level.
Regulatory status: FDA SAFFA (L-citrulline). 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.