# Assessment of the feed additives thiamine hydrochloride (3a820) and thiamine mononitrate (3a821) (vitamin B1 ) for all animal species for the renewal of their authorisation (Kaesler Nutrition GmbH)

## TL;DR

This paper assesses the safety of two forms of vitamin B1 for use in animal feed and concludes they are safe for animals, consumers, and the environment.

## Contribution

The paper provides a renewed safety evaluation of thiamine hydrochloride and thiamine mononitrate for use in animal feed.

## Key findings

- Thiamine mononitrate and thiamine hydrochloride are safe for all animal species.
- Both additives are irritants to skin and eyes and can cause sensitization.
- No efficacy assessment was needed for the renewal of authorization.

## Abstract

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of thiamine hydrochloride and thiamine mononitrate (vitamin B1) for the renewal of its authorisation as nutritional feed additives for all animal species. The Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that thiamine mononitrate and thiamine hydrochloride remain safe for all animal species, consumers and the environment. Regarding the user safety, both thiamine salts are regarded as skin and eye irritants, and skin and respiratory sensitisers. The Panel concluded there is no need for assessing the efficacy of the additives in the context of the renewal of the authorisation.