2021年6月3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）研究小组就二甲酸钾（potassium diformate）作为断奶仔猪和育肥猪饲料添加剂的安全性和有效性发表科学意见。

　　经过评估，专家小组认为该添加剂在断奶仔猪和育肥猪的饲料中作为酸度调节剂是有效的，最低建议浓度为6000mg/kg全价饲料。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 potassium diformate (Formi? LHS) as a technological feed additive for piglets (weaned) and pigs for fattening. The FEEDAP Panel co ncluded that potassium diformate is safe for weaned piglets and for pigs for fattening at the level of 6,000 mg/kg complete feed, with no margin of safety. The use of potassium diformate in weaned piglets and pigs for fattening nutrition under the co nditions of use proposed is of no co ncern for co nsumer safety. Potassium diformate does not raise co ncern regarding the effects on respiratory system and the skin but is an eye irritant. The use of potassium diformate as a feed additive is co nsidered safe for the environment. The additive is co nsidered to be efficacious as acidity regulator in feedingstuffs for weaned piglets and pigs for fattening at the minimum proposed co ncentration of 6,000 mg/kg complete feed.