The Vegetarian Resource Group Blog

What is Magnesium Chloride?

Posted on May 21, 2025 by The VRG Blog Editor

Magnesium Chloride photo from Freepik

Magnesium Chloride has been added to The Vegetarian Resource Group’s Food Ingredient Guide. Here’s this new entry:

Magnesium Chloride
Alternate Names: nigari, bittern, MgCl2, E511, bischofite
Commercial Source: Mineral
Used in: tofu, infant formula, sports drinks, beer, dietary supplements, winter road deicing, animal feed, fertilizer
Used as: coagulant, flavoring agent, electrolyte, deicing agent
Definition: Typically evaporated from seawater, magnesium chloride is a common coagulant in tofu production. Magnesium chloride possesses GRAS (generally recognized as safe) status by the US Food and Drug Administration.
Manufacturers:
Adnan Heikal of Alliance Chemical: “This product does not contain any declared animal-origin materials [or processing aids] in its composition.”
Owen Donald of Celtic Chemicals: “None of our products are derived from animal ingredients [or have] animal-derived processing aids involved in their manufacture.”
Additional Information:
Code of Federal Regulations
Classification: Vegan
Entry Added: May 2025

For more ingredient entries, see https://www.vrg.org/ingredients/index.php

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The contents of this posting, our website and our other publications, including Vegan Journal, are not intended to provide personal medical advice. Medical advice should be obtained from a qualified health professional. We often depend on product and ingredient information from company statements. It is impossible to be 100% sure about a statement, info can change, people have different views, and mistakes can be made. Please use your best judgment about whether a product is suitable for you. To be sure, do further research or confirmation on your own.

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