The full answer
Mono- and diglycerides can be produced from vegetable or animal fats.
If the label clearly identifies a permissible vegetable source, the source concern is much simpler.
When the source is not identified, Halal certification provides stronger assurance than trying to infer the answer from the ingredient name.
Answers in the Halal Knowledge Center reflect the standards followed by Halal Monitoring Services (HMS), which operates as part of the Shariah Board of America. HMS certifies only what it checks.