What I know about
triglycerides wouldn't cover the back of a stamp, and none of it is to do with Crohn's; but my immediate thought is, start hitting the search engines, try PubMed, see what you can find out about
it for yourself. If you do find anything that confirms your fears, then go back to your doctors with a printout and really put them on the spot. Either they will give you good answers that have logic - or you will know to get different doctors who can !
Half the stress of this disease sometimes is deciding how much you trust your doctors or medication. Best of luck !