经过评估，专家小组认为该添加剂以建议的最大量0.05 mg/kg使用时，对所有动物物种是安全的。在建议的饲料使用条件下使用添加剂后，没有发现对消费者和环境造成的影响。专家小组指出，甲硫醇对皮肤、眼睛和呼吸道有刺激性，而关于皮肤的致敏性尚无结论。部分原文报道如下：

 

　　Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety of methanethiol [12.003] belonging to chemical group 20 (aliphatic and aromatic mono‐ and di‐thiols and mono‐, di‐, tri‐ and polysulfides with or without additional oxygenated functional groups). Methanethiol [12.003] is currently authorised as a flavour in food. The additive under assessment is safe for all animal species up to the maximum proposed use level of 0.05 mg/kg complete feed. No concerns for the consumer and the environment were identified following the use of the additive at the proposed conditions of use in feed. Methanethiol [12.003] should be considered as irritant to skin and eyes and to the respiratory tract. No conclusions can be drawn on skin sensitisation.