Key Benefits
- 60-70% complete protein by weight
- Rich in phycocyanin antioxidant
- Supports healthy inflammation response
- Natural heavy metal detoxifier
- Dense in vitamins and minerals
What is Spirulina?
Spirulina is a blue-green algae product sold as powder, tablets, capsules, and greens blends. It is marketed for protein, pigments, and nutrient density, but contaminant testing is central.
Why shoppers compare Spirulina
Spirulina searches often include protein, B12, heavy metals, phycocyanin, and greens powder. Spirulina is not a reliable B12 strategy, and testing matters.
What to compare on the label
Compare spirulina powders and tablets by serving size, protein, phycocyanin, contamination testing, and safety cautions.
Compare spirulina format, serving size, testing, and nutrient-claim fit. Compare real serving grams, powder or food format, added sugar, caffeine or stimulant content, and contaminant testing.
How to compare Spirulina products
Spirulina products may be tablets, powders, or greens blends. Compare grams per serving, protein amount, phycocyanin claims, heavy metal and microcystin testing, and whether the flavor works for daily use.
Compare grams per serving, protein amount, phycocyanin claims, origin, taste, tablet count, and testing for heavy metals and microcystins. Greens blends may provide less spirulina than a standalone product.
Quality checklist
- Check grams per serving and protein amount.
- Look for heavy metal and microcystin testing.
- Use caution with PKU, autoimmune disease, gout, pregnancy, immune medication, and algae allergy.
Safety and fit
Spirulina is not a reliable vitamin B12 strategy. People with phenylketonuria, autoimmune disease, gout, pregnancy, or immune medication use should ask a clinician.
How Spirulina fits in a routine
Spirulina fits best as a tested food-like powder or tablet with realistic nutrient expectations. It should not replace B12 supplementation when B12 status is the concern.
Common questions
What should I compare first?
Compare serving grams, testing, and whether phycocyanin is measured.
Is spirulina a good B12 source?
No. It should not be relied on as a vitamin B12 strategy.
Related Guides
Compare with chlorella, moringa, and multivitamins.
Sources and further reading
Disclaimer: This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare provider before starting any new supplement regimen.