L-phenylalanine
L-phenylalanine carries a source-backed screening score of 3/5 and appears in 80 indexed US food products.
Source-backed answer
L-phenylalanine appears in 80 catalogued products. CSPI has no rating attached in this snapshot. Its FDA SAFFA status is “Approved.” Those source labels describe the ingredient; they do not establish whether a particular product, dose, allergy, or diet is safe.
- 80
- catalogued products
- #3,657
- usage rank of 247,206
- 38
- named brands represented
- 42%
- 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.
L-phenylalanine sits in the busiest tenth of the catalog (#3,657 / 247,206)
- Usage rank
- #3,657
- of 247,206 ingredients that appear in at least one catalogued product, tied with 23 others that also appear in exactly 80 products, listed in more products than 98.5% of them.
- Typical depth in an ingredient list
- 42%
- Of the way down the captured list, averaged across the 80 products listing it (mean slot 13.3). L-phenylalanine usually falls in the upper half of the list; this position does not measure its amount because source formatting, compound ingredients and labeling exceptions vary.
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.
What this page can and cannot answer
Separate this ingredient from its product neighborhood
This is a mixed product neighborhood: 32 of 80 records have some flagged component, while the rest do not. Compare ACTIVE Essential Amino Acid Blend; Acuts Amino-charged Energy; Advanced Amino Formula to see how surrounding formulations change; do not assign their 70–100 score range to L-phenylalanine itself. The ingredient most often sits in the upper half of the list, and Dietary supplements supplies the most useful like-for-like starting point for a label review.
32 of 80 linked records have some flagged component
All 79 NOVA-classified records cluster most heavily in Group 4, while the first-category labels split across several shelves. That makes the 70–100 score spread more informative than the average alone: investigate the low end, identify the actual flagged row, and compare it with a similar unflagged formulation before drawing a conclusion.
Next check: pair one flagged product with a similar unflagged product from the same shelf category.
What else is usually in the same product as L-phenylalanine
Across the 80 products on this site that list L-phenylalanine, 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 13.9x more often with L-phenylalanine than in the catalogue at large.
| Additive | Shared products | Share of L-phenylalanine products | Share of all products |
|---|---|---|---|
| Sucralose | 30 | 37.5% | 2.7% |
| Acesulfame Potassium | 11 | 13.8% | 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.
Function
FLAVOR ENHANCER, FLAVORING AGENT OR ADJUVANT, NUTRIENT SUPPLEMENT
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-phenylalanine
Products Containing L-phenylalanine
High-volume slice (16 of 80) for products naming L-phenylalanine:
L-phenylalanine vs other top-decile catalog footprints
High-volume peers for L-phenylalanine: 80 products, mean screening score 92.1/100. Catalog-mass neighbours in view: Aloe Barbadensis Leaf Juice; Annatto Extract And Turmeric; Organic Blue Agave Nectar. Axes below stay distinct so count-neighbors do not duplicate score-neighbors.
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.
Next steps from the L-phenylalanine page
80 product rows plus any FDA/CSPI fields on L-phenylalanine are the evidence base — drill into the listings that matter for your decision.
- Open the product sample for L-phenylalanine and read how the term sits on real packages. See listed products
- Move to a second ingredient page and compare registry fields plus catalog mass side by side. Compare a peer
- Check the methodology for how FDA SAFFA, CSPI, and Open Food Facts rows are joined on this site. Read the methodology
This page describes published source classifications and product-label coverage. It is not dietary, allergy, or medical advice.
Questions readers ask about L-phenylalanine
Does L-phenylalanine carry its own safety label in this catalog? ▼
This is a mixed neighborhood: some linked products carry a separate flag while others do not. L-phenylalanine itself carries and FDA SAFFA status "Approved" where the source record supplies them. Compare like-for-like products before treating the average screening score as an ingredient verdict.
Which product shelves show up most often with L-phenylalanine? ▼
L-phenylalanine ranks in the top decile by product count (#3,657 of 247,206), appearing in 80 indexed products led by Dietary supplements. The sample list below is a slice of that footprint, not the full universe.
What does L-phenylalanine do in food? ▼
L-phenylalanine is recorded as a flavor enhancer, flavoring agent or adjuvant, nutrient supplement in source technical-effect fields.
Regulatory status: FDA SAFFA (L-phenylalanine). 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.