Yes. Propylene glycol alginate is vegan
Brown-seaweed alginate joined to synthetic propane-1,2-diol. It is not an animal fat.
The full answer
The name sounds like propylene glycol esters of fatty acids. That other additive, E477, can be made from animal fat, so a lot of shoppers assume this gum is the same story.
It is not. Propylene glycol alginate (E405) starts as alginic acid from brown seaweed. Some of its acid groups are esterified with propane-1,2-diol, a synthetic glycol. EFSA says the additive breaks down into those two pieces, alginic acid and propane-1,2-diol. Neither piece is animal fat.
The gum itself is vegan. The rest of the bottle may not be. Salad dressing can still contain anchovy, cheese, or egg. A vegan logo is what covers the whole product.
What to look for on the label
- "Propylene glycol alginate", "propane-1,2-diol alginate", or E405
- Do not confuse it with "propylene glycol esters of fatty acids" (E477)
- A certified vegan logo when you need the whole package checked
Other diets
Common questions
Is propylene glycol alginate made from animal fat?
No. It is seaweed alginate joined to propane-1,2-diol. The animal-fat question belongs to propylene glycol esters of fatty acids, which is a different additive.
Why does the label say glycol if it is vegan?
The glycol is synthetic propane-1,2-diol, not a fat from an animal. EFSA treats that molecule as the piece that sets the daily limit.
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