Seaweed
veg · base score 1 · also listed as seaweed, seaweed extracts, algae extract, gracilaria seaweed, gracilaria spp)*, gracilaria, algae, dried algae, sea algae, dried ground sea algae, marine algae, marine algae meal, macroalgae, algae mix, algae powder, seaweed extract
What is it?
Seaweed is a vegetable ingredient. Graded good: a real, recognisable ingredient that adds nutritional value, so it lifts a product’s score.
At a glance
- Category
- veg
- Grade
- good
- Base score
- 1 (from −1 to 1; higher is better)
- Found in
- 1,040 products
- Also listed as
- seaweed, seaweed extracts, algae extract, gracilaria seaweed, gracilaria spp)*, gracilaria, algae, dried algae, sea algae, dried ground sea algae, marine algae, marine algae meal, macroalgae, algae mix, algae powder, seaweed extract
Common questions about seaweed
Is Seaweed good for dogs?
Yes, we grade it as a good ingredient: recognisable and nutritionally useful, so it lifts a product’s score. Bear in mind that no single ingredient decides quality; the whole recipe and its balance matter more.
How many UK dog foods contain seaweed?
1,040 UK products list seaweed as an ingredient in our database. The full list is shown below, sorted by rating.
What else is seaweed called on labels?
Manufacturers list it under several names: seaweed, seaweed extracts, algae extract, gracilaria seaweed, gracilaria spp)*, gracilaria, algae, dried algae, sea algae, dried ground sea algae, marine algae, marine algae meal, macroalgae, algae mix, algae powder, seaweed extract. We match all of these to the same glossary entry when we read a label.
How does Open Dog Food grade seaweed?
We grade it good, our highest grade, reserved for recognisable ingredients that add real nutritional value. Every ingredient is converted to its dry-matter share and scored from our glossary before a recipe gets its 1-100 rating; the full method is on our methodology page.
Why is seaweed added to dog food?
Seaweed is added as a natural source of iodine, trace minerals and some bioactive compounds. It can help support thyroid function and dental hygiene in some products. On UK labels it may appear as seaweed, algae or seaweed extract.







