Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Description of the substances
| Category of additive | Nutritional additive |
| Functional group of additive | Amino acids, their salts and analogues |
| Description | L‐tryptophan, technically pure |
| Target animal category | All animal species |
| Applicant | FEFANA |
| Type of request | New opinion |
