The Ruling on Foods Containing Mono- and Diglycerides of Unspecified Origin
Question
As-salāmu ʿalaykum wa raḥmatullāhi wa barakātuh, Shaykh.
I have a question regarding the ingredient “mono- and diglycerides” that is commonly found in many packaged foods. From what I understand, this ingredient can be derived from either plant sources or animal sources, and the packaging often does not specify which one was used.
In this situation, is it permissible to consume products containing mono- and diglycerides, or should a Muslim avoid them out of caution because they could potentially be derived from non-halal animal sources?
Answer
Alhamdulillah, wassalatu wassalamu ala rasulillah, wa ala alihi wa sahbihi ajma’in.
1. The Shari Context
The fundamental principle regarding foods is permissibility unless there is clear evidence that a particular ingredient is prohibited.
Allah says:
“He is the One Who created for you all that is on the earth.”
Surat al Baqarah (2:29)
And Allah says:
“He has explained to you in detail what He has forbidden to you.”
Surat al An’am (6:119)
These verses indicate that the default ruling is permissibility, while prohibition requires evidence.
2. Scholarly Discussion
Mono- and diglycerides are emulsifiers produced from fatty acids. They may be derived from:
- Plant oils, such as soybean, palm, or canola oil.
- Animal fats.
- In some cases, synthetic sources.
If they are known to come from halal plant sources, then they are unquestionably permissible.
If they are known to come from properly slaughtered halal animals, they are likewise permissible.
If they are known to come from pork or from animals not slaughtered according to the Sharia, then they are not permissible according to the majority of scholars, unless the manufacturing process results in a complete istihalah (complete transformation) according to those scholars who recognize it in this context. This remains an area of contemporary scholarly discussion.
The more common question, however, is when the source is unknown.
The majority of contemporary scholars state that mere possibility is not sufficient to declare a food haram. One does not move from certainty to prohibition based only upon speculation.
At the same time, many scholars recommend choosing products with halal certification or ingredients of known origin whenever reasonably available, especially when alternatives are plentiful.
3. Application to the Question
In your case:
- The ingredient is listed only as mono- and diglycerides.
- The manufacturer does not specify the source.
- You have no evidence that it comes from pork or another impermissible source.
Therefore, the product remains permissible according to the default rule, and a Muslim is not required to investigate every unspecified ingredient based solely on possibility.
However:
- If the manufacturer confirms that the ingredient is derived from pork or another impermissible source, then it must be avoided.
- If halal-certified alternatives are easily available without hardship, choosing them is preferable and more cautious.
4. Relevant Usul Principle
اليقين لا يزول بالشك
Certainty is not removed by doubt.
The certainty is that foods are permissible in principle. A mere possibility that an ingredient might come from a non-halal source does not remove that certainty. Prohibition requires evidence, not speculation.
Also relevant is:
الأصل في الأشياء الإباحة
The default ruling regarding things is permissibility.
Final Ruling
Products containing unspecified mono- and diglycerides are permissible to consume, because the mere possibility that they may have been derived from a non-halal animal source is insufficient to render them prohibited. If reliable information establishes that the ingredient is derived from pork or another impermissible source, then it must be avoided. Unless went through the (ISTIHALA الاستحاله) as some of the scholars permits it. Nevertheless, when halal-certified or clearly sourced alternatives are readily available, choosing them is preferable as a matter of caution.
And Allah knows best.