Page 1 - Reviews - Swanson Vitamins, Kelp, 250 Tablets - iHerb
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Customer Ratings & Reviews

100% authenticOur products are sourced directly from brands or authorized distributors.Show more
4.9
Based on 1,415 ratings
1,261
112
32
6
4
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What customers say
Customers highly praise Swanson Kelp for its high-quality ingredients, effective packaging, and reasonable price. Many users report significant improvements in overall well-being, thyroid function, metabolism, and skin health after incorporating the supplement into their daily routines. The tablets are noted for being easy to swallow with no strong taste or smell. The product is also appreciated for its antioxidant, anti-inflammatory, and antimicrobial properties. Customers value the natural iodine content from kelp, which supports thyroid hormone balance and energy production. Additionally, the supplement is recommended for brain health, muscle health, immune system support, and even weight loss when combined with other supplements. Overall satisfaction is high due to the product's effectiveness and quality.
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iHerbCustomer
Silver
Posted on Jan 18, 2025
United States
116
1
0
5
Seems good!
Verified purchase
Taking for iodine. Smells like the sea. Taste is fine, no burping of the sea-good thing! We like Swanson and I think kelp is an important supplement for my needs.
Anastasiiagerts
Gold
Posted on Feb 15, 2025
United States
341
1
2
51
Good
Verified purchase
Is a good price, good dosage, but u don’t like that it has too many additional unnecessary ingredients
iHerbCustomer
Posted on Oct 13, 2025
87
0
0
48
Swanson’s Kelp
Verified purchase
Swanson has high standards for product quality. The main ingredient in this supplement is kelp algae, which is a great source of iodine and benefits a healthy thyroid.
iHerbCustomer
Posted on Jun 6, 2025
Jordan
30
0
0
10
Natural iodine boost
Verified purchase
No side effects, works well for me. Love that it’s a natural source of iodine. Easy to take and great value for the price.
iHerbCustomer
Posted on Oct 28, 2024
Philippines
2,107
0
0
51
Verified purchase
Thank you for providing such outstanding supplements! The quality is exceptional, with thoughtfully selected ingredients that offer remarkable health benefits. Your products have made a significant positive impact on my overall well-being. I also appreciate the secure and reliable packaging. Thanks again, iHerb!
Anastasia
Silver
Posted on Jun 26, 2025
Kazakhstan
161
0
0
46
Affordable Thyroid Support That Delivers
Verified purchase
I added Swanson Kelp to my routine for a natural iodine boost — and it paid off. Noticed more steady energy and fewer afternoon crashes. Tablets are small, easy to take, and last forever with 250 in the bottle. Clean ingredients and great value for supporting thyroid health. ✔️ Found this helpful? Give it a thumbs up!
ihmtanjim
Gold
Posted on May 12, 2025
United Arab Emirates
417
5
0
30
Natural Iodine Support for Thyroid Health and Vitality
Verified purchase
Swanson Kelp provides 250 tablets of pure, nutrient-rich kelp, a natural source of iodine and essential minerals. Known for its thyroid-supporting benefits, kelp helps maintain healthy metabolism, hormone balance, and overall vitality.
iHerb customer
Posted on Oct 2, 2025
Norway
93
2
0
17
Thyroid support
Verified purchase
Quality feels good — capsules are well-manufactured, clearly labeled, and seem to use high-quality kelp with good mineral content. Benefit after a few weeks includes increased energy, better thyroid support (thanks to iodine), and mild improvements in skin/hair health. Ingredients are simple: kelp extract (seaweed), minimal fillers. Capsule size is larger. Taste is nonexistent when swallowed; if opened, there's a slight seaweed/umami marine note.
march071979
Posted on Mar 10, 2026
Philippines
40
0
0
0
Verified purchase
the ingredients is very good especially for the thyroid problems. it has an active ingredient and antioxidant benefit. very effective.
iHerbKate
Gold
Posted on Mar 14, 2024
407
0
0
42
Iodine support
Verified purchase
We can lot eat that much wild seafood to ensure daily dosage of iodine. I take kelp supplement instead. Great as an antioxidant and thyroid support. Make sure to have enough level of selenium for better iodine absorption.