Irish Sea Moss Organic — 1130 mg — 1 fl oz — Immune Support — Digestive Support — Thyroid Nutrition — Antioxidant Support*
LifeSource Vitamins Irish Sea Moss Organic supports immune and digestive health while providing natural iodine to help maintain normal thyroid hormone synthesis, as reflected in human research on edible seaweeds indexed in NIH/PubMed. Produced in FDA-registered, GMP-certified facilities and 3rd-party tested for identity, purity, and potency.*
Research-Driven & Verified Product.
Explore the clinical research, ingredient science, and global evidence supporting this product below.
Research Promise: At LifeSource Vitamins, our commitment is rooted in research and results. Every benefit below is supported by human clinical studies indexed in the National Institutes of Health (NIH) via PubMed, with full texts available in the National Library of Medicine (NLM) PubMed Central (PMC) when available. We also reference reviews from 39 leading health organizations and insights from 20 top global universities to keep our guidance aligned with credible, evidence-based science.* Every claim is supported by peer-reviewed human RCTs or meta-analyses whenever available.
Clinically Studied Benefits
✓ Supports immune function — Red seaweed extract enhanced multiple immune markers in healthy adults (DB-RCT, 8 weeks).
NIH/PMC — Jung SJ, 2020
✓ Supports digestive health via microbiome modulation — Whole edible seaweed beneficially shifted gut microbiota composition in adults (DB-RCT).
NIH/PMC — López-Santamarina A, 2025
✓ Helps maintain healthy body composition — Iodine-reduced kelp intake led to a significant reduction in body fat % in overweight men without adverse thyroid changes (DB-RCT, 8 weeks).
NIH/PMC — Aoe S, 2021
✓ Helps maintain post-meal glucose responses — Brown seaweed polyphenol blend attenuated post-load glucose/insulin in adults (DB-RCT, crossover).
NIH/PubMed — Paradis ME, 2011
✓ Supports cardiometabolic health — Meta-analysis of human trials showed macroalgae supplementation lowered total and LDL cholesterol and fasting blood glucose.
NIH/PMC — Rezaei S, 2023
✓ Supports healthy HDL levels — Polyphenol-rich seaweed extract modestly increased HDL cholesterol in hyperlipidemic adults (DB-RCT, 12 weeks).
NIH/PubMed — Murray M, 2021
✓ Helps reduce daily energy intake — Daily pre-prandial sodium alginate (seaweed fiber) reduced mean energy intake in free-living adults (randomized trial).
NIH/PubMed — Paxman JR, 2008
✓ May enhance satiety during meals — Alginate-based preload increased post-meal satiety and influenced gastric emptying in normal-weight adults (randomized trial).
NIH/PubMed — Jensen MG, 2012
✓ Provides dietary iodine that influences thyroid indices — A sushi/seaweed meal increased urinary iodine and transiently altered thyroid markers within normal ranges (randomized dinner study).
NIH/PubMed — Noahsen P, 2020
✓ Adjunctive support for weight-management programs — Alginate supplementation alongside calorie restriction improved weight loss in obese adults who completed a 12-week program (DB-RCT).
NIH/PubMed — Jensen MG, 2012
Additional / Promising Evidence
✓ May help maintain balanced lipids & glucose — Reviews/meta-analyses of human seaweed trials suggest modest improvements in LDL, total cholesterol and fasting glucose.
NIH/PMC — Kim YR, 2023
✓ May support digestive regularity — Low-molecular-weight seaweed polysaccharides increased fecal output in adults (DB-RCT beverage intervention).
MDPI — Bannon CD, 2021
✓ May aid appetite management — Calcium-gelled alginate/pectin beverage reduced daily energy intake in overweight women (randomized study).
NIH/PubMed — Pelkman CL, 2007
✓ May help keep post-meal hunger in check — Specific alginates in drinks suppressed hunger in a dose-dependent manner (randomized crossover).
NIH/PubMed — Peters HPF, 2011
✓ May help maintain glycemic responses in foods — Seaweed-enriched breads showed mixed/neutral effects on post-prandial glycemia in pilot human testing (context).
Elsevier — Wilcox MD, 2021
✓ Thyroid nutrition context — Reviews note seaweed can contribute iodine; selection and amounts should be appropriate to avoid excess.
European Thyroid Journal — Smyth PPA, 2021
University-Led & Academic Studies
✓ Supports immune function — Red seaweed extract enhanced immune markers (university DB-RCT).
NIH/PMC — Jung SJ, 2020
✓ Supports digestive health via microbiome modulation — Whole edible seaweed shifted gut microbiota (university DB-RCT).
NIH/PMC — López-Santamarina A, 2025
✓ Helps maintain healthy body composition — Iodine-reduced kelp reduced body fat % (university DB-RCT).
NIH/PMC — Aoe S, 2021
Global Evidence & Reviews
✓ Supports immune, digestive & cardiometabolic health — Edible seaweed shows effects on immunity, lipids, glucose, and thyroid in systematic reviews.
Frontiers/NIH-indexed — Trigo JP, 2023
✓ May help manage body weight & dyslipidemia — Edible seaweed supplementation shows promise in human interventions.
NIH/PubMed — Łagowska K, 2025
✓ Provides thyroid nutrition context — Seaweed contributes iodine; moderation advised to maintain balance.
European Thyroid Journal — Smyth PPA, 2021
We monitor research from leading institutions —
Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge, Oxford, Stanford, Yale, Tufts, University of Florida, Oregon State University – Linus Pauling Institute, Columbia, Cornell, Ohio State — to align with credible science.*
Key Ingredients
- Organic Irish Sea Moss (Chondrus crispus) — Plant-based source of soluble fiber and natural iodine (vegan, non-GMO; label-authentic).
- Organic Vegetable Glycerin
- Purified Water
Brief Benefit Bullets
- Supports immune health*
- Promotes digestive health*
- Provides natural iodine for thyroid nutrition*
- Offers antioxidant support from seaweed phytonutrients*
- Vegan, non-GMO; made in GMP, FDA-registered facilities*
Suggested Use
Use as directed on the label. Consult your healthcare provider if pregnant, nursing, taking medications, or managing a condition. Keep out of reach of children.*
Product Specifications
- Serving Size — 30 Drops
- Servings Per Bottle — 30
- Count / Volume — 1 fl oz / 1130 mg per serving
- Quality — Non-GMO; GMP; made in FDA-registered facilities
LifeSource Vitamins — Proudly American — Since 1992
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Irish Sea Moss Organic — 90 vegan capsules. Supports immune and digestive health and provides natural iodine for thyroid nutrition. Non-GMO, GMP. Clinically Studied Ingredients — NIH/PubMed!*
