'
Life Extension Sea-Iodine
Supplement Facts
Serving Size: 1 Vegetarian Capsule
Amount Per Serving
%DV
Iodine [from Sea-Iodine™ Complex Blend (organic kelp and bladderwrack extracts, potassium iodide)]
1,000 mcg
667%

The product is found useful for the following medical conditions

Chest Pain details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 11 Reviews
8.9
9.5
Pain relief noticed
Most Useful Review
I like the effect. At this dosage, only as prescribed by a doctor. The painful sensations in my chest before the cycle have disappeared, and my TSH returned to normal. Recommendations))

Sleep Apnea details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 18 Reviews
8.9
9.5
Energy boost
Most Useful Review
The tests on my thyroid gland are normal, but I often feel like I have hypothyroidism; I wake up feeling tired despite getting enough sleep. However, after a week of taking the supplement, I noticed a remarkable improvement. The brain fog disappeared, and I now wake up feeling energised every morning. It's a wonderful transformation.

Hypothyroidism details

SCIENTIFIC SCORE
Moderately Effective
Based on 6 Researches
8
USERS' SCORE
Good
Based on 56 Reviews
8.8
9.5
Iodine supplementation restores thyroid function
Iodine Deficiency Hypothyroidism Among Children in the United States - 21st Century Resurgence?
Most Relevant Research
We looked into the growing concern of iodine deficiency hypothyroidism among children in the United States. This condition, which can lead to cognitive and physical impairments, was thought to be largely eliminated thanks to universal salt iodization started in the 1920s. However, recent trends suggest that iodine deficiency could be reappearing due to increased use of noniodized salts, lower iodine levels in dairy, and dietary restrictions like veganism or food allergies.

Over an 18-month period, we documented a series of cases where three children were diagnosed with iodine deficiency hypothyroidism despite having no underlying thyroid dysfunction. Their clinical presentations varied significantly—some had large goiters while others showed mild or no goiter at all. The results of their biochemical tests also highlighted a range of thyroid-stimulating hormone elevations.

Importantly, all patients returned to normal thyroid function following iodine supplementation. We propose that measuring spot urine iodine levels alongside elevated serum thyroglobulin could serve as a simpler and effective diagnostic approach, moving away from the more complex 24-hour urinary iodine tests. Our findings shine a light on the necessity of addressing iodine deficiency in today’s dietary landscape.
9.5
Immediate energy boost
Most Useful Review
Very effective iodine. After just three days on one capsule, my hair stopped falling out, and I instantly felt more energetic with fewer headaches. I've reordered, as this iodine is far superior to Iodomarin. I’ve also started my mother on it for her subclinical hypothyroidism. It's effective, but the dose is high; for prophylactic use, one capsule weekly may suffice. Organic iodine gets absorbed precisely, preventing overdose.

Blood Clot details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 6 Reviews
8.7
9.5
Avoided medication
Most Useful Review
It helped improve my thyroid. My blood tests were showing low thyroid levels, and they wanted me to start medication. However, I preferred a natural alternative. I've been taking this once daily for about two months, and my last blood test showed that it's no longer an issue, so I don't need medication now! I highly recommend trying it!

Breast Cancer details

SCIENTIFIC SCORE
Moderately Effective
Based on 4 Researches
8.1
USERS' SCORE
Good
Based on 10 Reviews
8.7
8
Iodine seeds improve localization outcomes
Breast cancer localization by iodine seed 125I vs. wire- -guided localization - retrospective case-control study.
Most Relevant Research
In a recent study, we explored the effectiveness of two different localization techniques for non-palpable breast tumors: iodine seed (125I) localization and the traditional wire-guided method. This retrospective case-control study involved 62 patients, with an equal split between the two methods, aiming to determine which technique results in better patient outcomes.

Our findings highlighted that using iodine seeds led to a significantly smaller amount of tissue being removed during surgery, with an average volume of 46.2 cm³ compared to 83.7 cm³ for the wire-guided method. Additionally, we noted that the iodine seed method had a tendency to achieve clear margins (R0 resection) more often, though this did not reach statistically significant levels.

Importantly, in the subgroup using iodine seeds, none of the patients required re-resections due to inadequate margins, while 19.4% of those using wire guidance had to undergo further surgery for the same reason. Overall, the results suggest that iodine seeds may offer advantages in breast cancer localization, potentially leading to less tissue removal and better surgical outcomes.
9.5
Breast pain relief
Most Useful Review
After taking this with NOW's evening primrose oil, my breast pain disappeared completely. It's as if I never had the pain, and I had forgotten it was ever a symptom.

Chronic Fatigue Syndrome details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 22 Reviews
8.7
8.8
Effective for children
Most Useful Review
Iodine deficiency in children can lead to severe issues such as speech delays and gastrointestinal problems. My child has chronic dysbacteriosis, and this iodine has made a significant difference. The dosage is convenient, and the capsules are small enough for my child to swallow easily.

Common Cold details

SCIENTIFIC SCORE
Moderately Effective
Based on 3 Researches
8.3
USERS' SCORE
Good
Based on 12 Reviews
8.7
9
Iodine reduces rhinovirus infections
Interruption of experimental rhinovirus transmission.
Most Relevant Research
We explored the effectiveness of 2% aqueous iodine in preventing infections caused by rhinoviruses, the culprits behind the common cold. In a controlled setting, volunteers had their fingers treated with iodine before being exposed to the virus. Remarkably, none of the eight participants who received the iodine treatment became infected immediately afterwards. In contrast, all of the seven volunteers treated with a placebo did get infected.

We also noticed that when exposure occurred two hours after iodine application, only one out of ten volunteers fell victim to the virus, whereas six out of ten in the placebo group became ill. The difference was notable, though not quite statistically significant. Additionally, tests showed virus presence in only 11% of hand washes from those who used iodine, compared to 41% from the placebo group, suggesting that iodine may substantially reduce virus contamination on hands.

Overall, these findings indicate that using iodine could be an effective strategy in preventing common cold infections, especially right after treatment. It seems that applying iodine to our hands may serve as a protective measure against rhinovirus, significantly reducing the chances of getting sick.
8.8
Immediate strength
Most Useful Review
This is not my first purchase of this iodine. Combined with selenium, it has shown remarkable effects! Having AIT and hypothyroidism for years, I take these supplements a few times a year and feel improvements almost immediately. I have more energy, am warmer, my skin feels better, and my hair falls out less. However, the dosage is quite high, so for prevention, a smaller dose is advisable for less experienced individuals.

Gout details

SCIENTIFIC SCORE
Possibly Effective
Based on 3 Researches
7.7
USERS' SCORE
Good
Based on 3 Reviews
8.7
9
Iodine may reduce gout risk
A negative association between urinary iodine concentration and the prevalence of hyperuricemia and gout: a cross-sectional and population-based study in Mainland China.
Most Relevant Research
We explored the relationship between urinary iodine levels and the occurrence of gout, a painful form of arthritis often linked to high uric acid levels. Conducting an extensive population-based study in China, we analyzed data from over 75,000 adults to discover how iodine intake could be connected to gout and hyperuricemia.

Our findings revealed an interesting trend: as urinary iodine concentration (UIC) increased, the prevalence of hyperuricemia and gout decreased. Specifically, individuals with lower iodine levels had higher rates of these conditions, highlighting a negative association. In fact, those in the higher iodine groups experienced significantly lower odds of developing gout compared to those with adequate iodine levels.

While this study indicates a potential protective role of iodine against gout, we recognize that further research is necessary to explore the underlying mechanisms. More prospective studies could help confirm these findings and deepen our understanding of how iodine interacts with our health.
9.5
Prevents gout
Most Useful Review
Excellent! Life Extension Sea Iodine 1000 mcg 60 Vegetarian Capsules effectively prevents gout.

Leg Cramps details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 2 Reviews
8.7
10
Leg cramps relief
Most Useful Review
These tablets have finally stopped my nightly leg cramps for the first time in years!

Liver Disease details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 3 Reviews
8.7
9.5
Cysts resolved
Most Useful Review
This product has changed my life! For years, I suffered from severe fibrocystic breast disease requiring numerous aspirations. After one week of taking iodoral, my cysts were gone! My body temperature normalised as well. I am amazed and thankful for this product, and I plan to continue with a maintenance plan.

Hair Loss details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 2 Reviews
8.7
9.5
No longer clumps
Most Useful Review
I've been struggling with hormonal hair loss due to endometriosis. After taking these for nearly a month along with biotin, my hair is no longer falling out in clumps, and I no longer feel like I'm going bald!

Back Pain details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 6 Reviews
8.6
9.5
Normalised health
Most Useful Review
I follow my endocrinologist's advice to take this iodine. It has been effective; I feel good without any side effects. My health assessments have returned to normal, and I can easily swallow the small capsules. I recommend this product for anyone facing thyroid issues.

Brain Tumor details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 12 Reviews
8.6
9.5
Mental clarity enhanced
Most Useful Review
This product has significantly improved my mental clarity, effectively eliminating brain fog! I mix it with warm water and a teaspoon of salt daily, which has positively impacted my everyday life. Since starting this product, I also feel I have lost weight as it helps regulate cortisol levels. This product, along with Selenium, is essential for anyone with thyroid conditions. Highly recommended!

Cardiovascular Disease details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 3 Reviews
8.6
9.5
Eases anxiety quickly
Most Useful Review
I resolved my iodine deficiency through daily use of these supplements. They worked well for me, alleviating symptoms like anxiety and tenderness. I noticed a significant decrease in anxiety within hours of taking a pill, and after a month, I felt completely normal. Unlike other higher dosage iodine supplements, this dosage is gentle and effective without causing drowsiness.

Ear Infection details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 3 Reviews
8.6
9.5
Relieved fatigue symptoms
Most Useful Review
I’d like to share my experience with a dietary supplement I’ve been taking regularly. The product has received positive reviews for its composition. Iodine is vital, and deficiency can lead to chronic fatigue, immune weakness, and other health issues; it seems many people suffer from iodine deficiency. This particular iodine is derived from a mixture of Sea-Iodine, and I've noticed a significant improvement in my general health. Waking up early has become a pleasure, and I feel much less overwhelmed during the day. I recommend a course of iodine for anyone seeking to maintain their health, mood, and immunity, especially in trying times!

Headache details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 3 Reviews
8.6
8.8
Less frequent headaches
Most Useful Review
Budget-friendly with good results. I noticed a marked improvement in my health; my mind felt clearer, without fogginess or drowsiness during the day. I wake up feeling refreshed and energetic. Without iodine, I tend to feel tired in the mornings and struggle to motivate myself. My headaches have become less frequent; without iodine, I would have migraines. I am very satisfied and highly recommend this supplement.

Prostate Cancer details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 3 Reviews
8.6
9.5
New lease on life
Most Useful Review
Adding iodine, along with vitamin D3, can significantly improve one's wellbeing. Iodine aids in revitalising the thyroid and combats the negative effects of exposure to radon and other natural radiation. This supplement is particularly beneficial if there is a family history of issues like breast or prostate cancer. I appreciate that LifeExtension has been trusted by health professionals for many years.

Cancer details

SCIENTIFIC SCORE
Possibly Effective
Based on 16 Researches
7.4
USERS' SCORE
Good
Based on 2 Reviews
8.6
9
Iodine treatment aids recurrent cancer
Case report of the first use of a hydrogel rectal spacer for prostate cancer reirradiation via LDR brachytherapy: applications and technical notes.
Most Relevant Research
We observed a compelling case where a biodegradable hydrogel spacer was used alongside iodine-125 brachytherapy to treat recurrent prostate cancer. This innovative approach involved placing the spacer to create space between the prostate and the rectum, which significantly reduced radiation exposure to healthy tissues during the treatment.

Following initial external beam radiotherapy in 2015, the patient showed signs of local recurrence by 2022. To address this, the treatment plan included not just the iodine-125 brachytherapy but also the hydrogel spacer, which was placed in January 2024 just before the radiation treatment. Six months later, we noted a remarkable drop in the patient’s prostate-specific antigen (PSA) levels, indicating a positive response to the treatment.

This case showcases the potential benefits of using iodine treatment in combination with advanced techniques like hydrogel spacers. The results suggest that this method not only improves the effectiveness of therapy but also ensures higher safety by protecting adjacent tissues from unnecessary radiation damage. Overall, we find this integration of technology highly beneficial for managing recurrent cancer challenges.
9.5
Symptom improvement
Most Useful Review
After experiencing neck swelling and other discomforts for four months, I turned to iodine supplements. Within two days, my symptoms improved significantly, and my swelling has almost completely subsided.

Cold details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 3 Reviews
8.6
9.5
Resolves deficiency symptoms
Most Useful Review
If you're experiencing deficiency symptoms, take a pill daily until the bottle is empty. I realised I had an iodine deficiency around 50, likely due to avoiding table salt. I experienced hair loss, bloating, and a lower core temperature, often feeling cold. After one bottle, my symptoms resolved, and I'm delighted with the results. Just be careful not to overdose on iodine.

Heart Attack details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 5 Reviews
8.5
9.5
Reduced nodules significantly
Most Useful Review
About a year ago, I had an ultrasound that revealed two nodules on my thyroid. After consulting an endocrinologist, I began taking iodine. I chose this particular brand due to its positive reviews and pure composition. Six months later, a follow-up ultrasound showed considerable shrinkage of the nodules! This dietary supplement is excellent, and I intend to use it regularly. I am grateful to iHerb for such quality supplements. Health to everyone!

Bone Pain details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 12 Reviews
8.3
9.5
Cycle regularity restored
Most Useful Review
Best Iodine I took the iodine from this particular company and the dosage for testing. For 14 years, I suffered from irregularities in my menstrual cycle, with intervals of up to 60 days. For the first time, I have now had two consecutive months where my cycle has been regular. There are no longer any painful symptoms or nausea that once incapacitated me for days. This is truly the ideal iodine. Highly recommended!

Autoimmune Disorder details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 40 Reviews
8.1
9.5
Normalised body temperature
Most Useful Review
This product has successfully addressed my low body temperature issue. After consulting what I needed, I added iodine to my regimen. Within two weeks, my temperature reached 36.6°C! In my iodine-deficient region, a 1000 mcg dosage is perfect. I highly recommend this excellent quality product.

Hyperthyroidism details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 3 Reviews
8.1
9.5
Effective treatment noted
Most Useful Review
I absolutely love this iodine! It really helped me manage my mild hyperthyroidism, and after three months of daily use, my levels returned to normal. I took one after every meal.

Nausea details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 8 Reviews
8
9.5
Nausea reduction
Most Useful Review
I appreciate the great composition, swift delivery, and quality packaging of this product. Although the capsules are slightly large, there are no issues when swallowing them, and they have a pleasant citrus taste. Since incorporating this into my routine, I’ve noticed significant improvements in my headaches and fatigue, along with an enhancement in energy levels and overall mood. I recommend it, especially for those involved in fitness or dieting, as omega 3 effectively replenishes nutrients the body needs.
image