Food
Provides iodine and unique marine polysaccharides that may support thyroid and metabolic pathways.[3126,3249,3750, etc.]
Superscript reference numbers link to the Sources bibliography.
Composite Rating
Blends evidence depth, community direction, safety friction, and completeness.
Evidence Intensity
100/100
High depth from human/RCT/meta counts
Community Direction
0
Mixed / Neutral • confidence Minimal
Safety Friction
82/100
High signal from adverse/interaction markers
Data Completeness
100%
Studies 16 • mentions 0 • links 25
Not medical advice. This product is for educational and informational purposes only. It does not diagnose, treat, cure, or prevent any disease and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions regarding a medical condition.
FDA disclaimer: These statements have not been evaluated by the Food and Drug Administration. Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease. Results may vary. Not intended for use by pregnant or nursing women, individuals under 18, or those with known medical conditions without physician consultation.
If you are experiencing a medical emergency, call 911 or your local emergency number immediately.
Classification: prioritize.[1124,1271,3126, etc.]
Best fit: Users with low marine food intake and low iodine status risk..[1124,1271,3126, etc.]
Goal alignment: Hormone Health, Metabolic Health, Immune Support.[1124,1271,3126, etc.]
Classification
Prioritize
Evidence Tier
HIGH
Best Fit
Users with low marine food intake and low iodine status risk.
Primary Focus
Hormone Health, Metabolic Health
Clinical Depth
Humans: 746 • RCTs: 36 • Meta: 7
Cohort / Real-World
Cohort signals: 65
Safety Markers
Adverse signals: 67 • Interactions: 0
Freshness, trend, and study timeline for this item
Status
Trend
→ Stable evidence base
Depth
746 total studies · 4 recent
Timeline
Total indexed
746
Human studies
746
In vitro / tissue
458
Safety adverse signals
67
Cohort signals
65
Randomized trials
36
Weighted direction score: 0 (Mixed / Neutral)
High when there are >=2 human meta-analyses, or strong human trial/cohort volume with substantial human literature.
Total indexed
746
Human studies
746
In vitro / tissue
458
Safety adverse signals
67
Cohort signals
65
Randomized trials
36
Meta-analyses
7
Animal-only studies
0
Distribution of evidence by study design strength
Evidence Strength: High
PMID 38068845 • 2023 Dec 1
Brown Seaweed Consumption as a Promising Strategy for Blood Glucose Management: A Comprehensive Meta-Analysis.
Nutrients
Open PubMedPMID 40726022 • 2025 Aug
Edible Algae Reduce Blood Pressure in Humans: A Systematic Review and Meta-Analysis of Randomised Controlled Trials.
J Hum Nutr Diet
Open PubMedPMID 37103359 • 2023 Mar 30
How Do Brown Seaweeds Work on Biomarkers of Dyslipidemia? A Systematic Review with Meta-Analysis and Meta-Regression.
Mar Drugs
Open PubMedBenefit reports: 0
Adverse reports: 0
No-effect reports: 0
Mixed reports: 0
Unclear reports: 0
Signal confidence: 0.00
Benefits
Adverse
No Effect
Community confidence 0.00 with mentions: benefit 0, adverse 0, no-effect 0.
Search fetch failed: Failed to fetch after retries: https://old.reddit.com/search.json?raw_json=1&sort=relevance&t=year&limit=8&q=%22seaweed%22%20(diet%20OR%20nutrition%20OR%20meals%20OR%20side%20effects%20OR%20experience%20OR%20results)%20(subreddit%3Anutrition%20OR%20subreddit%3AScientificNutrition%20OR%20subreddit%3Aloseit%20OR%20subreddit%3AMealPrepSunday%20OR%20subreddit%3Aketo%20OR%20subreddit%3Afasting%20OR%20subreddit%3Amediterraneandiet%20OR%20subreddit%3Avegan%20OR%20subreddit%3Avegetarian%20OR%20subreddit%3Acarnivorediet%20OR%20subreddit%3Abiohackers%20OR%20subreddit%3Alongevity)
aggregate • unclear
No directional first-hand mentions captured in the current community corpus; source links are retained for traceability.
Open mentionEvidence Sources
PUBMED • Humans + preclinical triage
Counts from structured PubMed query set for diet/intake context.
Outcome: Humans 746, RCT 36, meta 7, cohort 65.[3126,3249,3750, etc.]
Open sourcePUBMED • 2023 • Human evidence curation set
PMID 38068845 from Nutrients.
Outcome: See linked PubMed abstract for methods and outcomes.[, etc.]
No directional mention volume was resolved; fallback profile metadata is shown in other sections.
Composite of study volume, RCTs, and meta-analyses
PMID 35233943 • 2022 Mar
Iodine from brown algae in human nutrition, with an emphasis on bioaccessibility, bioavailability, chemistry, and effects of processing: A systematic review.
Compr Rev Food Sci Food Saf
Open PubMedPMID 34967190 • 2021 Dec
Effects of resistant starch supplementation on oxidative stress and inflammation biomarkers: A systematic review and meta-analysis of randomized controlled trials.
Asia Pac J Clin Nutr
Open PubMedPMID 39728103 • 2024 Nov 25
Anti-Obesity Effects of Sulphated Polysaccharides Derived from Marine Macro Algae or Seaweeds: A Systematic Review and Meta-Analysis.
Mar Drugs
Open PubMedPMID 38608850 • 2024 Jun
The bioaccessibility and tolerability of marine-derived sources of magnesium and calcium.
Methods
Open PubMedPMID 38931192 • 2024 Jun 12
The Effect of Sargassum fusiforme and Fucus vesiculosus on Continuous Glucose Levels in Overweight Patients with Type 2 Diabetes Mellitus: A Feasibility Randomized, Double-Blind, Placebo-Controlled Trial.
Nutrients
Open PubMedPMID 37344446 • 2023 Dec 1
Effects of Nutrition Education Program for the Japan Diet on Serum Phospholipid Fatty Acid Compositions in Patients with Dyslipidemia: Re-analysis of Data from a Previous Randomized Controlled Trial.
J Atheroscler Thromb
Open PubMedPMID 36746392 • 2023 Oct 28
A comparative, randomised MRI study of the physiological and appetitive responses to gelling (alginate) and non-gelling nasogastric tube feeds in healthy men.
Br J Nutr
Open PubMedPMID 35323474 • 2022 Feb 26
Marginal Impact of Brown Seaweed Ascophyllum nodosum and Fucus vesiculosus Extract on Metabolic and Inflammatory Response in Overweight and Obese Prediabetic Subjects.
Mar Drugs
Open PubMedPMID 30321272 • 2018 Oct 1
Impact of a (poly)phenol-rich extract from the brown algae Ascophyllum nodosum on DNA damage and antioxidant activity in an overweight or obese population: a randomized controlled trial.
Am J Clin Nutr
Open PubMedPMID 32908248 • 2021 Jun
Impact of seaweed intake on health.
Eur J Clin Nutr
Open PubMedPMID 30840077 • 2019 May 1
Risks and benefits of consuming edible seaweeds.
Nutr Rev
Open PubMedPMID 37038991 • 2023 Sep 1
Seaweed consumption and the risk of prostate cancer: the Miyagi cohort study.
Eur J Cancer Prev
Open PubMedPMID 35607818 • 2022 Jun
Seaweed and Iodine Intakes and SLC5A5 rs77277498 in Relation to Thyroid Cancer.
Endocrinol Metab (Seoul)
Open PubMedFallback search fetch failed: Failed to fetch after retries: https://old.reddit.com/search.json?raw_json=1&sort=relevance&t=year&limit=12&q=seaweed
Community Sources
PUBMED • 2025 • Human evidence curation set
PMID 40726022 from J Hum Nutr Diet.
Outcome: See linked PubMed abstract for methods and outcomes.[3126,3249,3750, etc.]
Open sourcePUBMED • 2023 • Human evidence curation set
PMID 37103359 from Mar Drugs.
Outcome: See linked PubMed abstract for methods and outcomes.[3126,3249,3750, etc.]
Open sourcePUBMED • 2022 • Human evidence curation set
PMID 35233943 from Compr Rev Food Sci Food Saf.
Outcome: See linked PubMed abstract for methods and outcomes.[3126,3249,3750, etc.]
Open sourcePUBMED • 2021 • Human evidence curation set
PMID 34967190 from Asia Pac J Clin Nutr.
Outcome: See linked PubMed abstract for methods and outcomes.[3126,3249,3750, etc.]
Open sourcePUBMED • 2024 • Human evidence curation set
PMID 39728103 from Mar Drugs.
Outcome: See linked PubMed abstract for methods and outcomes.[3126,3249,3750, etc.]
Open sourcePUBMED • 2024 • Human evidence curation set
PMID 38608850 from Methods.
Outcome: See linked PubMed abstract for methods and outcomes.[3126,3249,3750, etc.]
Open sourcePUBMED • 2024 • Human evidence curation set
PMID 38931192 from Nutrients.
Outcome: See linked PubMed abstract for methods and outcomes.[3126,3249,3750, etc.]
Open sourcePUBMED • 2023 • Human evidence curation set
PMID 37344446 from J Atheroscler Thromb.
Outcome: See linked PubMed abstract for methods and outcomes.[3126,3249,3750, etc.]
Open sourcePUBMED • 2023 • Human evidence curation set
PMID 36746392 from Br J Nutr.
Outcome: See linked PubMed abstract for methods and outcomes.[3126,3249,3750, etc.]
Open sourcePUBMED • 2022 • Human evidence curation set
PMID 35323474 from Mar Drugs.
Outcome: See linked PubMed abstract for methods and outcomes.[3126,3249,3750, etc.]
Open sourcePUBMED • 2018 • Human evidence curation set
PMID 30321272 from Am J Clin Nutr.
Outcome: See linked PubMed abstract for methods and outcomes.[3126,3249,3750, etc.]
Open sourcePUBMED • 2021 • Human evidence curation set
PMID 32908248 from Eur J Clin Nutr.
Outcome: See linked PubMed abstract for methods and outcomes.[3126,3249,3750, etc.]
Open sourcePUBMED • 2019 • Human evidence curation set
PMID 30840077 from Nutr Rev.
Outcome: See linked PubMed abstract for methods and outcomes.[3126,3249,3750, etc.]
Open sourcePUBMED • 2023 • Human evidence curation set
PMID 37038991 from Eur J Cancer Prev.
Outcome: See linked PubMed abstract for methods and outcomes.[3126,3249,3750, etc.]
Open sourcePUBMED • 2022 • Human evidence curation set
PMID 35607818 from Endocrinol Metab (Seoul).
Outcome: See linked PubMed abstract for methods and outcomes.[3126,3249,3750, etc.]
Open source