Food additive · Thickener / stabilizer

Sodium alginate

E-number
E401

A thickener and gelling agent from brown seaweed.

  • Food additive
  • Thickener, stabilizer or gelling agent
  • Ultra-processing marker
  • Expert review pending

Concern level

Low concern Level 1 of 4 How concern levels work

A minor or very limited concern, such as being an ultra-processing marker only. The concern level sets how many points sodium alginate costs on a product’s receipt.

What the evidence says

  • Marker of ultra-processingInfo

    An ingredient class typical of ultra-processed foods (NOVA group 4). [1]

Evidence tiers say how sure the evidence is, separately from how much it matters. About evidence tiers.

Popular products that list sodium alginate

118 of the 17,000 most-scanned products in the US with a GoodSwap page list sodium alginate. The 12 most scanned:

Diets and allergens

Vegan
Yes
Vegetarian
Yes
Gluten-free
Yes

For the ingredient in general. Always check the package: a product’s own labels win.

Names GoodSwap recognizes on labels (15)
  • e401
  • algin
  • alginate
  • alginic acid
  • thickener e401
  • sodium alginate
  • stabiliser e401
  • gelling agent e401
  • thickener sodium alginate
  • stabiliser sodium alginate
  • stabilizer sodium alginate
  • thickeners sodium alginate
  • stabilisers sodium alginate
  • firming agent sodium alginate
  • gelling agent sodium alginate

Sources

  1. Ultra-processed foods: what they are and how to identify them

    Public Health Nutrition · April 2019 · Peer-reviewed

    doi.org