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Kelp

product on market Tablet or Pill GNC SuperFoods Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 33% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Kelp thallus extract provides iodine and calcium, which are essential for thyroid function and bone health. There is strong evidence supporting the role of iodine in regulating metabolism, though overall evidence coverage for this specific profile is limited. The ingredients are generally recognized as safe.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Kelp
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
180
Servings
Botanical with Nutrients
Product Type
33%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Calcium
80 mg (6% DV)
225 mcg (150% DV)
1.5× RDA — within safe limits 245 studies (A:4, B:133)
Kelp Thallus Extract
33.75 mg

Other Ingredients

Tricalcium Phosphate Guar Gum Croscarmellose Sodium Calcium Silicate Magnesium Stearate Silicon Dioxide Stearic Acid
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Info

Product Information

Directions for Use

Directions: As a dietary supplement, take one tablet daily.

Warnings & Precautions

Keep out of reach of children.

Warnings: Consult your physician prior to using this product if you are pregnant, nursing, taking medication, or have a medical condition.

Discontinue use two weeks prior to surgery.

Formulation Notes

Vegetarian Formula

A natural source of Iodine

No artificial colors, no artificial flavors, gluten free, no milk.

Additional Information

Store in a cool, dry place.

180-day supply

Metadata

Product Details

UPC / SKU0 48107 22528 5
DSLD Entry Date2024-06-20
Product TypeBotanical with Nutrients
FormTablet or Pill
BrandGNC SuperFoods
DSLD ID309387
Data Updated2026-04-11
Research

Research Evidence

849
Research Sources
56
Avg Quality
450
Meta Analysis
152
Rct
137
Systematic Review
73
Clinical Trial
11
Regulatory Source
7
Other
7
Guideline
3
Openfda Safety
2
Cochrane Review
2
Observational
A Phosphate binders for preventing and treating chronic kidney disease-mineral and bone disorder (CKD-MBD)
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin and mineral supplementation for maintaining cognitive function in cognitively healthy people in mid and late life
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Calcium supplementation during pregnancy for preventing hypertensive disorders and related problems
Meta Analysis The Cochrane database of systematic reviews 2025 PubMed DOI
A Dietary calcium supplementation for preventing colorectal cancer and adenomatous polyps
Systematic Review The Cochrane database of systematic reviews 2008 PubMed DOI
A Calcium and vitamin D for increasing bone mineral density in premenopausal women
Systematic Review The Cochrane database of systematic reviews 2023 PubMed DOI
A Dietary sodium, sodium-to-potassium ratio, and risk of stroke: A systematic review and nonlinear dose-response meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2019 PubMed DOI
A The association between circulating magnesium and clinically relevant outcomes in patients with chronic kidney disease: A systematic review and meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2021 PubMed DOI
A Calcium channel blockers versus other classes of drugs for hypertension
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
View all evidence for Electrolytes →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.