$4.99 Standard Shipping
Free Shipping Icon


Item: SW337
4.6 out of 5 (56)

Swanson Premium

Kelp (Iodine Source)

Kelp (Iodine Source)

  • A sea vegetable rich in iodine

  • Terrific nourishment supporting healthy thyroid function

  • Potent 225 mcg of iodine per tablet

225 mcg 250 Tabs
Tabs Size: K

Retail $5.49
Save 36%
In Stock
  • A sea vegetable rich in iodine

  • Terrific nourishment supporting healthy thyroid function

  • Potent 225 mcg of iodine per tablet

Swanson Kelp is a unique formula that helps promote thyroid health. This ocean plant is packed with nutrients and features a rich source of iodine, an essential mineral known for healthy thyroid function. Each kelp tablet delivers 225 mcg of iodine.

Terms and Ingredient Definitions

Supplement Facts

Serving Size 1 Tablet

  Amount Per Serving % Daily Value
Iodine (from kelp) 225 mcg 150%
Atlantic Kelp (Ascophyllum nodosum)(standardized to 0.4% iodine) 59 mg *

*Daily Value not established.

Other ingredients: Dicalcium phosphate, calcium carbonate, microcrystalline cellulose (plant fiber), stearic acid, silica, magnesium stearate, acacia, maltodextrin.

Suggested Use: As a dietary supplement, take one tablet per day with water. Do not exceed recommended dose.

NOTE: May contain crustacean shellfish (lobster, shrimp and crab).

Relative Size

Printable Pill Size Guide

Shipping Weight

.25 lbs

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Rated 4.6 out of 5 by 56 reviewers.
Rated 5 out of 5 by Very convenient I was using another brand that came in capsules more than twice the amount. I only need half so I had to open the capsule and mix what I needed with water, reclosed the capsule for the next day. This product has a reasonable daily dose and avoids the inconvenience. It is also cost-effective. March 19, 2016
Rated 5 out of 5 by great source of iodine Great source of iodine but be mindful of other supplements or multivitamin that contain iodine. Don't need to over do it February 23, 2016
Rated 5 out of 5 by my daily sea greens very cost effective to get my daily sea green vegy. October 13, 2015
Rated 5 out of 5 by Good iodine source It is easy to use this product to meet iodine requirements. October 8, 2015
Rated 5 out of 5 by Just right This kelp has just enough iodine to supplement my diet. Very important nutrient. April 25, 2015
Rated 4 out of 5 by Good product Felt nourishing for my thyroid. February 19, 2015
Rated 5 out of 5 by my source of iodine I have used this product for many years and am completely satisfied with it. I take it to be sure I get enough iodine in my diet every day. August 1, 2014
Rated 5 out of 5 by Kelp (Iodine Source) Good item for healthy mineral for thee body since I do not use salt. June 21, 2014
Rated 5 out of 5 by I take this to support my thyroid, and it helps keep thyroid hormone dosage to a minimum. February 20, 2014
Rated 3 out of 5 by Difficult to swallow I hate swallowing these so I was so glad to get my iodine drops from SV 2 days ago that seem way more effective. These are going in the Tr----. January 26, 2014
Rated 5 out of 5 by Good daily supplement This seems to help give a good, moderate boost to my energy level with daily use. I would recommend it to anyone. January 18, 2014
Rated 5 out of 5 by Iodine I have started taking this occasionally due to not using iodized salt in my food. January 5, 2014
Rated 4 out of 5 by Since many of our foodstuffs no longer are fortified with Iodine and it is a human must , we must supplement our daily diets to insure that we do get enough . There is no more abundant or economic source than Kelp . The only question is why not Kelp? January 2, 2014
Rated 5 out of 5 by Excellent product! Kelp is great! This has defenitely made my health better and I can't recommend this enough! Very satisfied :) December 5, 2013
Rated 5 out of 5 by I use this as a substitute for Iodine in my diet September 8, 2013
Rated 4 out of 5 by Seems to work I've been taking these for a couple of months and I seem to have more energy. August 27, 2013
Rated 5 out of 5 by Works for me I try to follow a healthy diet plan, consuming very little salt, fast foods, or processed foods. It dawned on me that I probably wasn't getting enough iodide. After taking the kelp pills for three weeks now, I believe they've improved my energy level and I feel more alert. I would certainly recommend this product to anyone who has had similar experience to mine. June 27, 2013
Rated 5 out of 5 by Have used it for a few years to help my thyroid gland. June 27, 2013
Rated 5 out of 5 by Good source of iodine I am consuming one pill every other day because I have a fairly descent input of iodine from other natural supplements that I have purchased through Swanson's, plus certain types of foods that I consume also supplies me with iodine. Iodine is a very important component in one's diet. Research it online. June 22, 2013
Rated 5 out of 5 by An Old Standby for Iodine Iodine is something many are deficient in especially if you avoid iodized salt which we do. Kelp is a great source and the price is right at Swanson Vitamins. June 17, 2013
Rated 5 out of 5 by very good product I would recommend this product to anyone who needs to increase their iodine levels. May 26, 2013
Rated 5 out of 5 by Great source of iodine at a great price I like that this product is simple and to the point. If you need kelp, for any reason, I would recommend Swanson's Premium Kelp every time. Nothing glamorous just Kelp, pure and simple, the way I like it. April 30, 2013
Rated 1 out of 5 by near out of date received on 04.08.2013 manif. date 06.2011.Two month to expire. April 15, 2013
Rated 5 out of 5 by It is working! Since I have started taking this Kelp supplement I have noticed an increase in energy and decrease in appetite cravings. March 15, 2013
  • 2016-05-05 T10:14:54.831-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_56, tr_56
  • loc_en_US, sid_SW337, prod, sort_default
2 next>>

Risk-Free Purchase Guarantee

If you are dissatisfied for any reason, we'll give you a full refund and pay return shipping.

Why Shop Swanson® Brands?

"With my personal 100% money-back satisfaction guarantee, you have nothing to lose and great savings to gain."

Lee Swanson, Founder of Swanson Health Products

Swanson's Standards

We are dedicated to offering the highest quality products at the best price. Find out more about how we ensure such a high standard in everything we do.

Learn More

225 mcg 250 Tabs
Tabs Size: K

225 mcg 500 Tabs
Tabs Size: K

close popup
No Thanks

Your 10% Off Promo Code is on the Way! Thanks for signing up for emails.

You're now signed up to receive exclusive deals and savings opportunities!

Thanks again for connecting with us. Keep an eye on your inbox — your first coupon is on its way!

Thank You! This email address is already signed up

You are signed up for the following:

  • Offers
  • Recipes
  • E-Newsletter
  • Updates & Reminders

Thank you for your interest and be assured that you will continue to receive our emails at this address.

Look for your next communication from us within the next week.


We are having trouble processing your request.

Our apologies!

Please try again later.