Sent an email to CSPINET.org peeps: NAH CSPI to me show details 8:10 PM (14 hours ago) Thanks for your email. We have consulted with one of our expert oil processor sources and can tell you that mono and diglycerides only infrequently contain trans fat. "Hard monos" contain no trans fatty acids. They are prepared from fully hydrogenated oils. Fully hydrogenated oil, unlike partially hydrogenated oil, does not produce trans fat. Hard monos are often used for cake and icing shortening. Monos prepared from native non-hydrogenated palm oil, sunflower or cottonseed oil are virtually free of trans. Only "soft monoglycerides" which are often used for cake mix shortening or imitation dairy products are similar to partially hydrogenated fat and do contain trans. We doubt, however, that large amounts of mono- and diglycerides are used, but if they provide significant amounts of trans fat, the trans would show up on food labels. This is the new ingredients popping up on products that used to have hydrogenated oil listed.