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E-number E551 · Minerals
Silicon dioxide
Halal
- Typical source
- Mineral
- Plain-language explanation
- E551, commonly known as silicon dioxide, is an anti-caking agent added to powdered foods like spices, salt, and coffee creamers to prevent them from clumping together. It is a naturally occurring mineral primarily derived from sand or quartz, and it can also be produced synthetically for food use. Because it is entirely inorganic and never sourced from animals or alcohol, it is universally considered halal by all major certification bodies, including JAKIM, MUI, MUIS, ESMA, and HFA. Its halal status is straightforward and does not depend on the source, as both natural and synthetic origins are mineral-based and completely plant-free or animal-free. Muslim consumers can safely consume products containing this ingredient without any dietary concerns.