L-tyrosine
L-tyrosine carries a source-backed screening score of 3/5 and appears in 134 indexed US food products.
Source-backed answer
L-tyrosine appears in 134 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.
- 134
- catalogued products
- #2,547
- usage rank of 247,206
- 60
- named brands represented
- 38%
- 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-tyrosine sits in the busiest tenth of the catalog (#2,547 / 247,206)
- Usage rank
- #2,547
- of 247,206 ingredients that appear in at least one catalogued product, tied with 16 others that also appear in exactly 134 products, listed in more products than 99% of them.
- Typical depth in an ingredient list
- 38%
- Mean relative depth 38% across 134 parsed labels, slot 13.3 on average. L-tyrosine 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.
Reading this ingredient record
Audit the co-occurring flags first
52.2% 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-tyrosine as the trigger. Open records such as 1st Phorm, Megawatt Strawberry Lemonade; Alimentum hypoallergenic for food allergies and; Alpha brain instant and inspect which ingredient row carries the caution marker. The 89.6/100 product average is therefore a triage signal for this surrounding formulation set, not an ingredient verdict. Its 38% average label depth helps locate the term when checking the package.
52.2% of linked products contain a separately flagged ingredient
Processing is unusually concentrated here: Group 4 accounts for 121 of 123 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.
What else is usually in the same product as L-tyrosine
Across the 134 products on this site that list L-tyrosine, 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 16.6x more often with L-tyrosine than in the catalogue at large.
| Additive | Shared products | Share of L-tyrosine products | Share of all products |
|---|---|---|---|
| Sucralose | 60 | 44.8% | 2.7% |
| Acesulfame Potassium | 25 | 18.7% | 1.8% |
| Monk fruit extract | 12 | 9% | 0.5% |
| Carrageenan | 8 | 6% | 4.5% |
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
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-tyrosine
Products Containing L-tyrosine
A sample of 16 high-volume listings among the 134 indexed products containing L-tyrosine:
L-tyrosine vs other top-decile catalog footprints
L-tyrosine sits among other busy catalog rows (134 products, mean score 89.6/100). Nearest count peers include “Acide Citrique”, “Aged Red Peppers”, “Black Pepper Extract”. Count peers and score peers are listed separately on purpose.
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.
Using the L-tyrosine evidence
134 product rows plus any FDA/CSPI fields on L-tyrosine are the evidence base — drill into the listings that matter for your decision.
- Review the sampled product records that list L-tyrosine to see how the ingredient appears in actual labels. Open product sample
- Place L-tyrosine next to “Aged Red Peppers” (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-tyrosine — common follow-ups
How should I read safety signals when L-tyrosine sits in heavily flagged products? ▼
52.2% 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-tyrosine is the trigger. Where a source rating exists, L-tyrosine scores 3/5 on this site's screening scale with FDA SAFFA status "Approved". None of that replaces a product-, dose-, allergy-, or person-specific determination.
Which product shelves show up most often with L-tyrosine? ▼
L-tyrosine ranks in the top decile by product count (#2,547 of 247,206), appearing in 134 indexed products led by Dietary supplements. The sample list below is a slice of that footprint, not the full universe.
What function does L-tyrosine serve when it appears beside other flagged additives? ▼
L-tyrosine is recorded as a flavoring agent or adjuvant, nutrient supplement in source technical-effect fields. In high co-flag products, that function coexists with other caution-marked components — inspect the full list rather than isolating this role.
Regulatory status: FDA SAFFA (L-tyrosine). 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.