2023年7月28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）研究小组就桉树油（eucalyptus oil）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、消费者和环境是安全的。由于其被认为可以给食物调味，并且它们在饲料中的功能是相同的，因此认为没有必要进一步证明其功效。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 safety and efficacy of an essential oil from the leaves and twigs of Eucalyptus globulus Labill. (eucalyptus oil) when used as a sensory additive in feed and water for drinking for all animal species. The FEEDAP Panel concluded that the use of eucalyptus oil is safe at the following concentrations in complete feed: 12 mg/kg for chickens for fattening, 18 mg/kg for laying hens, 16 mg/kg for turkeys for fattening, 22 mg/kg for piglets, 26 mg/kg for pigs for fattening, 32 mg/kg for sows, 55 mg/kg for veal calves (milk replacer), 48 mg/kg for cattle for fattening, sheep, goats and horses, 31 mg/kg for dairy cows, 19 mg/kg for rabbits, 55 mg/kg for salmonids, 58 mg/kg for dogs, 10 mg/kg for cats and 75 mg/kg for ornamental fish. These conclusions were extrapolated to other physiologically related species. For any other species, the additive was considered safe at 10 mg/kg complete feed. No concerns for consumers were identified following the use of eucalyptus oil up to the highest safe level in feed. The additive under assessment should be considered as irritant to skin and eyes and the respiratory tract and as a skin sensitiser. The use of eucalyptus oil at the proposed use level in feed was not expected to pose a risk for the environment. Since E. globulus and its preparations were recognised to flavour food and its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.
