2025年7月25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）研究小组就赖氨酸铜硫酸盐（copper lysinate sulfate）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，专家小组认为在建议的使用条件下该添加剂对目标物种和环境是安全的。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 copper lysinate sulfate as nutritional feed additive for all animal species. The additive has not yet been authorised in the EU. The FEEDAP Panel concluded that the additive copper lysinate sulfate is safe for all animal species and categories at the respective maximum authorised total copper levels in feed. In the absence of reliable deposition data, the FEEDAP Panel could not conclude on the safety of the additive for the consumer. In the absence of data, the FEEDAP Panel could not conclude on the eye irritation potential of the additive. The Panel concluded that the additive is not a skin irritant and thus it should be considered a skin and respiratory sensitiser; inhalation and dermal exposure are considered a risk. The FEEDAP Panel concluded that the use of the additive under the proposed conditions of use is safe for the environment. The Panel was not in the position to conclude on the efficacy of the additive at the maximum authorised inclusion level.
