Flavor Enhancer · CAS 63-91-2
L-phenylalanine
FDA status: Approved. EU: not separately listed. No U.S. state has enacted a specific ban yet.
According to the U.S. Food and Drug Administration, L-phenylalanine is FDA-approved, and no U.S. state has moved to restrict it independently of federal policy. By tracked product count it ranks #315 of 417.
- #315 of 417 by tracked product prevalence
The verdict
L-phenylalanine is FDA-approved, and no U.S. state has moved to restrict it. By Open Food Facts product count it sits #315 of 417 among additives with tracked product presence (20th percentile).
- 4/5
- Low Risk
- Approved
- FDA status
- #315 of 417
- product-prevalence rank
- 0
- state regulations
The regulatory record at a glance
L-phenylalanine: composite 4/5 (Low Risk) with FDA Approved.
| Property | Value | Source |
|---|---|---|
| FDA Status | Approved | FDA SAFFA |
| EU Status | Not separately listed | EC 1333/2008 |
| E-Number | - | EU additive register |
| CAS Number | 63-91-2 | CAS Registry |
| Category | Flavor Enhancer | FDA functional class |
| Composite Safety Score | 4 / 5 (Low Risk) | PlainIngredients methodology |
| EFSA ADI | Not in our EFSA data | EFSA scientific opinion |
| U.S. State Actions | 0 states | State legislative records |
| Tracked Products | 3 | Open Food Facts (US) |
Values reflect official agency classifications as published by the U.S. Food and Drug Administration and the European Union's regulatory framework. See our methodology for scoring details.
L-phenylalanine, explained
L-phenylalanine (CAS 63-91-2) is an FDA-regulated food substance used as flavor enhancer, flavoring agent or adjuvant, nutrient supplement.
Common Uses
Catalog-profile peer axes
Nationwide catalog-profile peers for L-phenylalanine
Product-count (3) and safety-score (4/5) peer columns, disjoint link sets.
Score 4/5 peers (≥50 OFF products)
Nearest other additives by PlainIngredients safety score (floored at ≥50 tracked products), distinct from the count row.
Frequently Asked Questions
Is L-phenylalanine safe to consume?
L-phenylalanine scores 4/5 (Low Risk). FDA status is Approved. In the lower-concern band the federal listing is the primary signal. Moderation still applies to any additive.
What is L-phenylalanine used for in food?
L-phenylalanine is commonly used as: flavor enhancer, flavoring agent or adjuvant, nutrient supplement. It belongs to the Flavor Enhancer category of food additives.
Where does L-phenylalanine sit among food additives PlainIngredients tracks?
Among additives with at least one tracked product, it ranks #315 of 417 by Open Food Facts product count. See /methodology#corpus-placement for the ranking bases.