2021年11月8日，据欧盟食品安全局（EFSA）消息，应欧盟委员会要求，欧盟动物饲料添加剂和产品（FEEDAP）研究小组就鼠李糖乳杆菌（Lacticaseibacillus rhamnosus）NCIMB 30121作为所有动物饲料添加剂的安全性和有效性发表科学意见。

经过评估，专家小组认为，在授权的使用条件下该添加剂对所有动物物种、消费者和环境都是安全的。鼠李糖乳杆菌NCIMB 30121被视为皮肤和呼吸敏化剂，而其对眼睛和皮肤的潜在刺激性没有结论。在更新授权的情况下，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 Lacticaseibacillus rhamnosus (formerly Lactobacillus rhamnosus) NCIMB 30121 as a technological additive for all animal species. The additive aims to improve the production of silage and is authorised without a minimum inclusion level. The applicant provided evidence that the additive currently on the market complies with the existing conditions of authorisation. There was no new evidence to lead the FEEDAP Panel to reconsider its previous conclusions. Thus, the Panel concluded that the additive remains safe for all animal species, consumers and the environment under the authorised conditions of use. Regarding user safety, the additive should be considered a skin and respiratory sensitiser. No conclusions could be drawn on the eye and skin irritancy potential of the additive. There was no need for assessing the efficacy of the additive in the context of the renewal of the authorisation.