NOW Foods
Spirulina, Organic 500 mg Tablets


85/100
SUPPIE SCORE
68/100
EFFICACY
High
SAFETY
94/100
CLEANLINESS
What Does Spirulina, Organic 500 mg Tablets Do?
Provides 1,000 mg of organic spirulina per 2-tablet daily serving to support lipid profiles and antioxidant markers, though many clinical trials utilize higher daily intakes.
Does 1,000 mg daily provide enough spirulina compared to the doses used in clinical trials?
Can people with autoimmune conditions safely take spirulina tablets?
How does spirulina help relieve symptoms of seasonal allergic rhinitis?
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What Are the Benefits of Spirulina, Organic 500 mg Tablets?
Based on proven scientific research
Lipid Profile SupportStrong
Allergic Rhinitis Symptom ReliefModerate
Antioxidant Biomarker SupportModerate
Blood Pressure ModulationMild
Good For:
What Are the Side Effects of NOW Foods Spirulina, Organic 500 mg Tablets?
Always consult your health practitioner if in doubt.
RiskLow Risk
Overview
•Spirulina has a strong safety record and GRAS status, but microalgae products can risk contamination with microcystins or heavy metals if not grown in controlled environments; certified organic sourcing helps mitigate this.
•Mild gastrointestinal symptoms such as loose stools, nausea, cramping, and transient green discoloration of stool can occur.
•Individuals with phenylketonuria (PKU) should strictly avoid spirulina because it contains naturally occurring phenylalanine.
•Those with systemic autoimmune disorders (such as lupus, rheumatoid arthritis, or multiple sclerosis) should exercise caution due to spirulina's potential immunostimulatory properties.
Potential Side Effects
Negative Interactions
Inactive Ingredients
Hypromellose
Low RiskStearic acid
Low RiskWhat Are the Ingredients in NOW Foods Spirulina, Organic 500 mg Tablets?
Organic Spirulina (Arthrospira platensis)
1 g
Hypromellose
Stearic Acid
Dosage & Bioavailability
How the active doses and forms in Spirulina, Organic 500 mg Tablets compare to the research.
•Organic Spirulina (Arthrospira platensis) — 1 g a day; within the 1-8 g/day used in studies.
Frequently Asked Questions
Common questions about NOW Foods Spirulina, Organic 500 mg Tablets