Is E402 Halal or Haram?

featured - Is E402 Halal or Haram

Assalamualaikum, dear readers! Are you curious about the status of E402 in the Islamic diet? Well, you’ve come to the right place! In this post, we’ll embark on a fascinating journey to uncover the truth about potassium alginate, tracing its origins and exploring religious views on its permissibility.

By the end of this article, you’ll have a clear understanding of this food additive’s halal credentials. So, let’s dive right in!

Key Takeaways

📌 E402, also known as potassium alginate, is a food additive used as a gelling agent and thickener in various food products.
📌 E402 is considered halal (permissible) in Islamic dietary laws as it is derived from seaweed through non-animal methods.
📌 It is generally recognized as safe for consumption and approved by regulatory authorities such as the FDA and the European Union. E402 can be found in bakery items, canned goods, desserts, and meat analogs, among others.

What is E402?

Potassium alginate, denoted as E402, functions as a gelling agent and thickener in manufactured goods. The potassium salt of alginic acid forms flexible films that impart smooth texture to mixtures.

Chemical Structure

On a molecular level, potassium alginate’s building blocks are α-L-guluronic and β-D-mannuronic acid monomers from brown seaweed. Cross-linked by potassium ions, they develop into cohesive hydrogels.

What Is E402 Made From?

Like its sodium and ammonium counterparts, potassium alginate is derived via the extraction of alginate salts in kelp cell walls. Commonly farmed varieties such as Laminaria digitata serve as the plant source through hydrolysis.

Possible Side Effects

When consumed as intended, E402 poses no known risks to health. Only excessive amounts beyond regulated usage levels may cause minor digestive complaints in susceptible individuals. However, these effects subside upon discontinuing intake.

Regulations and Guidelines

E402 holds official approval as a food additive within the European Union. Additionally, the FDA has deemed it Generally Recognized as Safe (GRAS) for its application as a thickener, stabilizer, texturizer, and firming agent in a diverse array of food items.

From condiments to confections, gelatins to puddings, and even processed fruits and fruit juices, sodium alginate plays a multifaceted role across various food categories.

Dosage and Administration

The EFSA has concluded that there is no need for a numerical Acceptable Daily Intake (ADI) for sodium alginate, and that there is no safety concern at the level of the refined exposure assessment for the reported uses of sodium alginate as a food additive.

Is E402 Halal or Haram?

Many Islamic jurists concur that potassium alginate, obtained solely from seaweed via non-animal methods, is halal (permissible) for consumption. Thus, foods containing this emulsifier in their listed ingredients fall within the scope of halal nutrition.

Find out more:
Is E401 Halal or Haram?
Is E403 Halal or Haram?


To summarize, E402 comes from sustainably harvested kelp and helps improve food texture via its gelling activity. Global regulators ensure its safe use in manufacturing. Most religious authorities consider potassium alginate a halal food additive by virtue of its natural plant origins.

Allahu A’lam (Allah Knows Best)


What is the source of E402?

It derives from brown seaweeds like Laminaria digitata through the chemical extraction of alginate salts in their cell walls.

Is E402 safe for consumption?

Yes, major agencies judge it safe for people when used properly by food businesses as directed.

What are some common food products that contain E402?

Bakery items, canned goods, desserts, meat analogs, and more may list this versatile thickener.

What is the CAS number of E402?

The Chemical Abstracts Service registry number of potassium alginate is 9005-36-1.

Is E402 banned in any country?

No, the research found no nation outright prohibits E402 according to accessible information.

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