Chlorella
Also known as: Chlorella vulgaris, Chlorella pyrenoidosa, green algae, microalgae
Effective Dosage
6 g/day (exercise performance studies); 30 g protein equivalent (muscle protein synthesis studies)
What the Science Says
Chlorella is a single-celled green algae sold as a powder or tablet supplement. Clinical trials suggest it may modestly improve aerobic capacity (VO2max) and reduce blood lactate during exercise, particularly when combined with training over 2–21 days at 6 g/day. It also contains protein and essential amino acids that can stimulate muscle protein synthesis at rates comparable to other plant-based proteins like mycoprotein, though its amino acid absorption is slower than spirulina.
What It Doesn't Do
Not proven to detox heavy metals in humans — the detox claims come from lab and animal studies, not human trials. Won't replace a balanced diet. No strong evidence it boosts immunity, improves skin, or cures any disease. Performance benefits are modest and inconsistent across studies — don't expect dramatic gains.
Evidence-Based Benefits
Nutritious algae. May have some nutritional benefits. Limited evidence for claims.
Weak EvidenceEffective at: 2-3g daily (for nutritional use)
Source: Examine.com
Absorption & Bioavailability
Moderate — chlorella raises plasma amino acids after ingestion, but more slowly and to lower peak levels than spirulina or animal proteins. Cell wall may limit nutrient absorption; broken-cell-wall forms are often marketed as more bioavailable, but this wasn't directly tested in the provided studies.
Red Flags to Watch For
- Most 'detox' and heavy metal cleansing claims are not supported by human clinical trials in the provided evidence
- Several irrelevant papers in this dataset used chlorella as a lab organism for environmental toxicology — not human health research
- Exercise performance benefits were small and not consistent across all studies; one cycling study showed no significant improvement in time trial performance
- Animal and fish studies (catfish, rats) cannot be directly extrapolated to human health benefits
- Quality varies widely between products — contamination with heavy metals or harmful algae is a real risk with poorly sourced algae supplements
Products Containing Chlorella
See how Chlorella is used in these analyzed products:
Amazing Grass Super Greens The Original
Supplement
SuperGreen Tonik
Supplement
Texas SuperFood
Supplement
Super Greens The Original - Capsules
Supplement
Super Greens The Original
Supplement
Lemme Greens Gummies
Supplement
Research Sources
- PubMed
- NIH DSLD
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-04-06