Mono- and diglyceride fatty acid esters are not trans fatty acids per se. Mono- and diglyceride fatty acid esters are glycerol fatty acids, which tend to form trans fatty acids during application. Mono-diglyceride fatty acid esters, diglyceride fatty acid esters as well as triglyceride fatty acid esters are components of glycerol fatty acids, which are mainly formed by the condensation of glycerol and fatty acids, and are generally used as food additives. Mono-diglyceride fatty acid esters can be digested and absorbed, and may form trans fatty acids in the process of production. Trans fatty acids mainly refers to the structure of fatty acids for trans, and mono- and diglyceride fatty acid esters have no direct connection, can not directly say that mono- and diglyceride fatty acid esters are trans fatty acids. Try to maintain a healthy diet in your daily life, and if necessary, consult a medical professional to develop an individualized diet plan.