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Chlorella (Chlorella vulgaris)
Freshwater algae with the highest chlorophyll content of any plant — binds heavy metals and supports detoxification pathways.
What the evidence says
Chlorella appears to help in 4 of 5 studies with measurable effects — the evidence leans clearly favourable.
Most evidence is from high-quality meta-analyses and randomised trials published 2007–2026 with a typical study size of 38 participants.
Based on 45 studies · 6 meta-analyses · 29 RCTs · 6,205 total participants
Confidence
HighWhat the studies found
By outcome
Chlorella has an evidence score of 7.5/10 — strong evidence based on 45 indexed studies, including 5 meta-analyses. Freshwater algae with the highest chlorophyll content of any plant — binds heavy metals and supports detoxification pathways.
The commonly studied dose of Chlorella is 3-10g daily. Research points to an estimated optimal dose around 8g, with a minimum effective dose near 4g. Individual response varies — start low and adjust.
The best time to take Chlorella is in the morning. Taking it with food is preferred. Chlorella (Chlorella vulgaris/pyrenoidosa) is a nutrient-dense green algae rich in chlorophyll, protein, iron, B12, and chlorella growth factor (CGF).
Spirulina
Likely helpsBlue-green algae with 60-70% complete protein and unique phycocyanin antioxidant — lowers cholesterol, blood pressure, and blood sugar.
Green Tea Extract
Likely helpsConcentrated catechins from green tea that support metabolism, fat oxidation, brain health, and antioxidant defense.
Last reviewed May 2026 · evidence from 39 studies · how we score
This information is for educational purposes only. It is not a substitute for professional medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement or medication.
Chlorella is a single-celled green freshwater algae that has gained popularity for its detoxification properties and nutritional density. It contains chlorophyll (the highest of any known plant), protein, vitamins, minerals, and a unique compound called Chlorella Growth Factor (CGF). It's particularly noted for its ability to bind heavy metals and support their elimination from the body, making it popular for detox protocols.
Binds to heavy metals for elimination
Highest chlorophyll content of any plant
Unique nucleotide-peptide complex
How Chlorella works — from molecular targets to health outcomes. Click an edge to see supporting research.This visualization is in beta — pathways are being refined and expanded.
3-10g daily
Loading: Start with 1g and increase slowly to minimize detox symptoms
Take with food
| Form | Type |
|---|---|
| 🧪Broken cell wall chlorella powder or tablets | Recommended |
| 💊Whole cell chlorella (harder to digest) | Alternative |
| 💊Capsules | Alternative |
Cell wall must be broken for digestibility. Powder works well in smoothies. Tablets are convenient but may be less fresh.
Minimum: 4 weeks
Optimal: 12 weeks
Cycling: Not required
Note: For heavy metal detox, take away from supplements containing minerals. 'Broken cell wall' chlorella is better absorbed.
Meta-analysis of 797 participants showed significant reduction in total cholesterol (-14.57 mg/dL) and LDL-C (-11.27 mg/dL). Subgroup analysis indicated doses >4g/day and duration ≥8 weeks were required for significance. No effect on HDL-C or triglycerides.
Enhanced elimination of heavy metals and toxins
Enhanced immune cell activity
Modest improvements in lipid profile
Can cause gas, cramping, green stool
May help support elimination; work with practitioner
High vitamin K may reduce effectiveness
May stimulate immune function
Tip: Start low; take with food
Tip: Normal effect from high chlorophyll
Tip: Start with very low dose; increase gradually
Chlorella is generally well-tolerated and considered safe for most healthy adults at recommended doses. The most commonly reported side effects are nausea, green stool, detox symptoms. Use caution if any of these apply to you: Warfarin use (high vitamin K); Severe iodine sensitivity.
Glucomannan
Likely helpsAbsorbs up to 50x its weight in water, creating strong satiety — supports weight loss, blood sugar regulation, and cholesterol reduction.
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