2023年6月9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25-羟胆钙化醇（25-hydroxycholecalciferol）作为所有猪、育肥家禽、观赏鸟类和其他家禽物种饲料添加剂的安全性和有效性发表科学意见。
据了解，25-羟胆钙化醇是由自养假诺卡氏菌DSM 32858生产的。经过评估，由于缺乏足够的数据，专家小组无法就该添加剂对目标物种和消费者的安全性做出结论，但对环境是安全的。另外，评估小组得出结论，该添加剂在建议的使用条件下可能有效。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 safety and efficacy of a feed additive consisting of 25-hydroxycholecalciferol (produced by Pseudonocardia autotrophica DSM 32858) for all pigs, all poultry for fattening and ornamental birds and other poultry species. The production strain P. autotrophica DSM 32858 is not genetically modified however, uncertainties remain on the possible presence of its viable cells in the final product. Due to the lack of adequate safety data and uncertainty on the presence of nano particles, the FEEDAP Panel cannot conclude on the safety of the additive for the target species and the consumer. The additive was shown not to be irritant to skin or eyes and it is not a skin sensitiser. Considering the low dusting potential of the additive, the FEEDAP Panel concluded that the exposure through inhalation is unlikely. However, the FEEDAP Panel considered that uncertainties remain on genotoxicity and on the possible presence of viable cells of P. autotrophica DSM 32858 in the final product which might have an impact on the safety for the users. The use of the feed additive is considered safe for the environment. The Panel concluded that the additive has a potential to be efficacious under the proposed conditions of use.
