Norwegian Kelp

by Nature's Harmony · capsule · 250 capsules

  • On the market (NIH)
  • DSLD label 21706
  • Serving 1 capsule; amounts per 0 capsules

Norwegian Kelp by Nature's Harmony lists 2 ingredients, 2 with an amount per serving of 0 capsules, such as 97 mg of norwegian kelp (laminaria digitata) powder. Its current label entered the NIH Dietary Supplement Label Database on May 24, 2013.

What is in Norwegian Kelp?

Each row as the label prints it, per serving of 0 capsules. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Norwegian Kelp: Supplement Facts rows against the market (DSLD label 21706, January 2026 release)
IngredientAmount% DVAmong products listing it
Norwegian Kelp (Laminaria digitata) powderNorwegian Kelp (Laminaria digitata) powder Genus: Laminaria Species: digitata Note: Certified organic97 mgLaminaria in Norwegian Kelp against 54 products97 mg per serving; the middle half of products list 16.13 mg to 99.25 mg, the median 50 mg.97 mg

Higher than 72% of 54 products listing laminaria (median 50 mg).

Iodine455 mcg303%*Iodine in Norwegian Kelp against 6,382 products455 mcg per serving; the middle half of products list 75 mcg to 150 mcg, the median 150 mcg.DV 150 mcgUL 1,100 mcg455 mcg

Higher than 97% of 6,382 products listing iodine (median 150 mcg).

* % Daily Value computed from the printed amount and the FDA Daily Value (21 CFR 101.9); the label prints none for that row.

Source: NIH ODS Dietary Supplement Label Database, label 21706 (entered May 24, 2013), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • Its 455 mcg of iodine is higher than 97% of the 6,382 iodine products that print an amount; 188 list more.

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

1 product lists the very same ingredients; the nearest amounts come first.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Recommended Use: A source of iodine. Recommended Dose (Adults): Take 1 capsule daily with a meal.
Warnings
Risk Information: Do not use if pregnant or breastfeeding.
Individuals with a thyroid condition should consult a health care practitioner before use.
KEEP OUT OF REACH OF CHILDREN.
DO NOT USE IF SEAL UNDER CAP IS BROKEN.
Allergens and what it does not contain
This product does not contain corn, dairy, eggs, gluten, soy, sulfites, or artificial colours, flavours or preservatives.
Storage
STORE IN A COOL, DRY PLACE.

Source: label statements in DSLD label 21706.

What else is on the label?

Other ingredients: Cellulose, Silicon Dioxide, Magnesium Stearate, Gelatin.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): SunOpta A healthy products company.

How many labels does Norwegian Kelp have?

One label is on file, entered on May 24, 2013.

  1. Label 21706 (current) Entered May 24, 2013 · on the market · 250 capsules

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names SunOpta Inc. (manufacturer), Acton, ON. All Nature's Harmony products.

Where next?