California Spirulina 500 mg by VitalBulk — Ingredients, Evidence & Safety

🟢 100/100

This product looks safe

No ingredients exceed tolerable upper intake levels
17% of ingredients have research evidence

B Label Compliance Grade

Product Label

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Label Data

3 Tablet(s) Serving Size

Other Combinations Product Type

17% Evidence Coverage

Supplement Facts — Evidence Check

Total Calories

5 Calorie(s) (1% DV)

Protein

1 Gram(s) (2% DV)

Vitamin A

2096 mcg RAE (233% DV)

Vitamin K

11 mcg (5% DV)

✅ Within RDA (0.1× RDA of 0.12 mg) 📚 273 studies (Tier A: 9, B: 175)

RDA 0.12mg This product: 0.011mg

Iron

850 mcg (5% DV)

Sodium

16 mg (1% DV)

Other Ingredients

Vegetable Stearates Silica

Label Claims — Verification

❓ All Other

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

Target Groups

Adult (18 - 50 Years) Gluten Free

Product Information

📋 Directions for Use

Suggested Use: Take three (3) tablets daily with food. Do not exceed recommended daily dose unless directed by your health care practitioner.

⚠️ Warnings & Precautions

Do not exceed recommended daily dose unless directed by your health care practitioner.

Keep out of reach of children in a cool, dry place.

This product may be produced in a facility that also makes products containing milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, and soy.

Food supplements should not be used as a substitute for a varied diet.

Warning: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of the reach of children. In case of accidental overdose, call a doctor or poison control immediately.

In case of adverse event: 855-885-2855

🧪 Formulation Notes

Tested gluten free Certified nonGE tested

Additional Information

Actual color and size Servings Per Container = Varied

Keep out of reach of children in a cool, dry place.

Product Details

DSLD Entry Date 2022-01-22

Product Type Other Combinations

Form Tablet or Pill

Brand VitalBulk

DSLD ID 258723

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 →