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877 products scored223 ingredients explainedNo paid placement

Ingredient library

Doing real work · Marine plant

Kelp

Also appears on labels as: dried kelp, dried organic kelp, seaweed, dried golden algae, marine microalgae oil, dulse powder

Dried seaweed, or in the algae oil case, cultured marine microalgae.

Watched ingredients get highlighted on every product panel you open.

Where it comes from
Harvested or farmed marine sources, dried and milled.
Why it's in the product
Trace minerals, especially iodine. Algae oil is a plant-source of DHA, useful in vegetarian and fish-free formulas.
Safety and toxicity
Safe in the small amounts used. Kelp is a concentrated iodine source, and iodine excess as well as deficiency can affect thyroid function, so the inclusion rate matters.
Interactions and who should be careful
Worth mentioning to your vet if your pet is being treated for a thyroid condition.

General reference, not veterinary advice. Dose, breed, and existing conditions change the answer, so talk to your vet before changing what your pet eats. Think we got this wrong? Tell us and we log it publicly.

Found in 112 scored products

Lowest scores first. Its presence here is not what drove those scores.

Panel Score 71 out of 100, grade C: Proceed with caution
PurinaFriskies Seafood Sensations Dry Cat Food
Panel Score 72 out of 100, grade C: Proceed with caution
Special KittyGourmet Formula Seafood Blend
Panel Score 82 out of 100, grade B: Good, check the flags
Natural BalanceTargeted Nutrition Zen Life Canned Dog Foodimported, not reviewed
Panel Score 83 out of 100, grade B: Good, check the flags
Next LevelPerformance Plus Large Breed Adult
Panel Score 83 out of 100, grade B: Good, check the flags
Next LevelHi-Pro Professional
Panel Score 83 out of 100, grade B: Good, check the flags
Next LevelHero’s Saluteimported, not reviewed
Panel Score 84 out of 100, grade B: Good, check the flags
Heart to TailDeboned Chicken and Brown Rice Recipe Dog Foodimported, not reviewed
Panel Score 86 out of 100, grade B: Good, check the flags
VictorHi-Pro Plus Formula
Panel Score 86 out of 100, grade B: Good, check the flags
Blue BuffaloTrue Solutions Weight Control Chicken & Oatmeal Recipeimported, not reviewed
Panel Score 87 out of 100, grade B: Good, check the flags
Next LevelNormally Active Healthy Weight Adult
Panel Score 87 out of 100, grade B: Good, check the flags
DinoviteDinovite for Dogs
Panel Score 87 out of 100, grade B: Good, check the flags
JinxGrass-Fed Lamb Dog Food
Panel Score 87 out of 100, grade B: Good, check the flags
Supreme SourceGrain Free Salmon Meal & Sweet Potato Recipeimported, not reviewed
Panel Score 87 out of 100, grade B: Good, check the flags
Evolution DietGourmet Entreeimported, not reviewed
Panel Score 87 out of 100, grade B: Good, check the flags
Trisha YearwoodSamon Recipeimported, not reviewed
Panel Score 87 out of 100, grade B: Good, check the flags
AnnamaetDry Dog Food Grain Free Aqualuk Cold Water Formulaimported, not reviewed
Panel Score 87 out of 100, grade B: Good, check the flags
AvoDermAdvanced Sensitive Support Grain Free Lamb & Sweet Potato Formula For Adult Dogsimported, not reviewed
Panel Score 87 out of 100, grade B: Good, check the flags
Chicken Soup For The SoulClassic Beef & Brown Rice Recipe For Adult Dogsimported, not reviewed
Panel Score 87 out of 100, grade B: Good, check the flags
Dr. Gary's Best BreedHolistic Dog Nutrition Working Dog Recipeimported, not reviewed
Panel Score 87 out of 100, grade B: Good, check the flags
Dr. Tim'sDry Dog Food RPM Salmon Meal & Pork Recipe (Grain Free)imported, not reviewed
Panel Score 87 out of 100, grade B: Good, check the flags
Supreme SourceSuper-Premium Dog Food Lamb Meal and Potato Recipeimported, not reviewed
Panel Score 87 out of 100, grade B: Good, check the flags
VeRUSCanine Canned Chicken Stew With Vegetablesimported, not reviewed
Panel Score 87 out of 100, grade B: Good, check the flags
VeRUSFeline Canned Chicken, Pumpkin & Green Lipped Mussel Formulaimported, not reviewed
Panel Score 88 out of 100, grade B: Good, check the flags
Hill's Science DietPuppy Chicken & Brown Rice Recipe

88 more scored products list this ingredient. Showing the 24 lowest-scoring.