2025年4月16日，欧盟食品安全局（EFSA）发布消息，欧盟食品安全局发布关于酿酒酵母NCYC R404作为奶牛饲料添加剂的授权更新申请的评估。
经过评估，专家小组得出结论，该添加剂在授权使用条件下对目标物种、消费者和环境都是安全的。在授权更新的情况下，无需评估添加剂的功效。部分原文报道如下：
Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the assessment of the application for renewal of the authorisation of Saccharomyces cerevisiae NCYC R404 as a zootechnical additive (functional group: gut flora stabilisers) for dairy cows. The applicant has provided evidence that the additive currently on the market complies with the existing conditions of authorisation. There was no new evidence that would lead the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) to reconsider its previous conclusions on the safety of the product for the target species, consumers and the environment, for which the additive is considered to remain safe. Regarding user safety, the Panel reiterates its previous conclusions that the additive is not irritant to eyes and skin but should be considered a potential skin and respiratory sensitiser, and any exposure through skin and respiratory tract is considered a risk. There is no need for assessing the efficacy of the additive in the context of renewal of the authorisation.
