sodium alginate

What it is

A polysaccharide salt from brown seaweeds (kelp relatives), famous in human food for instant-gel tricks with calcium. In pet food it thickens and stabilizes wet textures at small inclusions.

Why it's in pet food

Reliable gel structure that survives processing. Unlike dried kelp — the whole seaweed, with its iodine dial — the purified alginate extract carries the texture molecule and leaves the mineral story behind.

How Bowlmark scores it

Scores are deterministic math over the printed label — the rules below apply to every product identically, and nothing estimates or fills in a blank.

Neutral: no deduction, no flag. The kelp page holds this shelf's one real nutritional conversation (iodine variability); alginate is that plant with everything interesting refined out, which for a thickener is precisely the job description.

Read the full methodology

Foods that list sodium alginate

No food on the shelf lists sodium alginate yet. Scan a bag that does and its label joins the catalog — versioned from the day it arrives.

Sources

• WSAVA Global Nutrition Committee — Selecting a pet food
• MSD Veterinary Manual — dietary management of GI disease

Related ingredients

• guar gum
• locust bean gum
• pectin
• sodium carboxymethylcellulose
• tara gum
• xanthan gum

Further reading

• Reading a cat food label — what cats actually need
• Wet food vs dry: the honest tradeoffs