Spirulina 500 mg by Source Naturals — Ingredients, Evidence & Safety

🟢 100/100

This product looks safe

No ingredients exceed tolerable upper intake levels
Limited research evidence available for ingredients

B Label Compliance Grade

Product Label

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Label Data

6 Tablet(s) Serving Size

16 Servings

Other Combinations Product Type

0% Evidence Coverage

Supplement Facts — Evidence Check

Calories

10 Calorie(s)

Total Carbohydrates

1 Gram(s) (1% DV)

Protein

2 Gram(s) (4% DV)

Sodium

20 mg (1% DV)

Spirulina

3 Gram(s)

📊 Market median: 200.0mg (107 products)

Median 200.0mg This product: 3mg

Other Ingredients

modified Cellulose Gum Silica Stearic Acid

Label Claims — Verification

❓ All Other

❓ Structure/Function

All Other (98% of products) Structure/Function (82% of products) Nutrient (38% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

Suggested Use: 6 tablets daily with meals.

⚠️ Warnings & Precautions

Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

Do not use if either tamper-evident seal is broken or missing.

Keep out of the reach of children.

🧪 Formulation Notes

It is a high-quality protein, which contains all nine essential amino acids.

Non GMO Validated

Additional Information

For over 30 years, spirulina (Arthrospira platensis) has been the premier choice for supplementing a vegetarian diet. Source Naturals Spirulina is of the highest quality available. Preliminary research suggests that spirulina, a blue-green algae, supports the immune system and healthy circulation.

Store in a cool, dry place.

SN0637 REV D153-A

Non GMO Validated

Product Details

UPC / SKU 0 21078 00637 4

DSLD Entry Date 2017-12-22

Product Type Other Combinations

Form Tablet or Pill

Brand Source Naturals

DSLD ID 77482

Data Updated 2026-04-11

Research Evidence

10 Research Sources

51 Avg Quality Score

3 Meta Analysis

3 Rct

2 Systematic Review

2 Clinical Trial

B The effect of Spirulina supplementation on lipid profile: GRADE-assessed systematic review and dose-response meta-analysis of data from randomized controlled trials

Meta Analysis Pharmacological research 2023

PubMed DOI

B A systematic review and meta-analysis of the impact of Spirulina supplementation on plasma lipid concentrations

Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2016

PubMed DOI

B Potential benefits of microalgae intake against metabolic diseases: beyond spirulina-a systematic review of animal studies

Systematic Review Nutrition reviews 2024

PubMed DOI

C The effects of Spirulina supplementation on metabolic syndrome components, its liver manifestation and related inflammatory markers: A systematic review

Systematic Review Complementary therapies in medicine 2019

PubMed DOI

C The effects of spirulina on glycemic control and serum lipoproteins in patients with metabolic syndrome and related disorders: A systematic review and meta-analysis of randomized controlled trials

Meta Analysis Phytotherapy research : PTR 2019

PubMed DOI

C The effects of spirulina intake on clinical and metabolic parameters in Alzheimer's disease: A randomized, double-blind, controlled trial

Rct Phytotherapy research : PTR 2023

PubMed DOI

C Antioxidant Efficacy of a Spirulina Liquid Extract on Oxidative Stress Status and Metabolic Disturbances in Subjects with Metabolic Syndrome.

Rct Marine drugs

PubMed DOI

C Combined high-intensity interval training and spirulina supplementation synergistically improve inflammatory and lipid-associated biomarkers in men with obesity.

Rct Nutrition research (New York, N.Y.)

PubMed DOI

C The Effects of Spirulina Platensis on Insulin Resistance in HIV-infected Patients

Clinical Trial ClinicalTrials.gov 2008

ClinicalTrials.gov

C Carbon-13 (13C)-Spirulina Platensis Gastric Emptying Breath Test (GEBT)

Clinical Trial ClinicalTrials.gov 2010

ClinicalTrials.gov

View all evidence for Spirulina →