VOL. I · 2026 · EVIDENCE-LED SUPPLEMENT RESEARCHUSA & GLOBAL EDITION
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ING-152Ingredient Research Profile

Superfoods & Botanicals

Chlorella

Also known as: Chlorella vulgaris · Chlorella pyrenoidosa · Green algae

●●○Moderate Evidence

A freshwater green algae rich in chlorophyll, CGF, and complete protein. Binds heavy metals for excretion, modulates immunity, and improves cholesterol. The cell wall must be broken for bioavailability.

Effective Dose

3–10g / day

per clinical evidence

Evidence Level

Moderate

Superfoods & Botanicals

Mechanism

Chlorella growth factor (CGF), chlorophyll, heavy metal chelation

primary action

Best For

Detoxification

Immune health, Gut health, Cholesterol

This profile is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare professional before starting any supplementation, especially if you have pre-existing conditions or take medications.

What Is Chlorella?

Chlorella is a single-celled green algae with a complete protein profile (58% protein), high chlorophyll content, B vitamins, iron, and a unique nucleotide-peptide complex called chlorella growth factor (CGF). Unlike spirulina, chlorella has a rigid cell wall that must be mechanically broken during processing for nutrients to be bioavailable.

How It Works: The Science

Chlorophyll and its metabolites chelate heavy metals (mercury, lead, cadmium) in the GI tract, reducing absorption and facilitating excretion. CGF (a mixture of nucleic acids, amino acids, polysaccharides) stimulates immune cell proliferation and wound healing. Chlorella polysaccharides activate macrophages via TLR-2 and TLR-4.

Primary Mechanism

Chlorella growth factor (CGF), chlorophyll, heavy metal chelation

Evidence-Based Benefits

Reduces heavy metal accumulation (mercury, lead)

moderate

Multiple studies — chlorella supplementation reduces blood and urinary heavy metal levels

Reduces total and LDL cholesterol

moderate

Ryu et al. (2014) — 8g/day for 4 weeks significantly reduced total cholesterol and LDL

Improves immune function

moderate

Kvídera et al. (2020) — improved NK cell activity and reduced infection frequency

Dosage Guide

Effective Dose

3–10g / day

3–10g/day broken-cell wall powder or tablets. Start at 3g — detox symptoms (headache, fatigue) possible initially as heavy metals mobilise. Always choose 'broken cell wall' or 'cracked cell' chlorella.

Safety Profile & Side Effects

Same contamination concerns as spirulina (cyanotoxins, heavy metals from growth water). Must use broken cell wall form — intact cell wall is not digested. May interact with warfarin (vitamin K content).

Who Should (and Shouldn't) Take It

Best for
DetoxificationImmune healthGut healthCholesterol
Who it's for

Those with heavy metal exposure (dental amalgams, high fish consumption, industrial exposure), vegans wanting nutrient density, and those wanting a natural immune and detox support.

Frequently Asked Questions

What is the recommended dose of Chlorella?

3–10g/day broken-cell wall powder or tablets. Start at 3g — detox symptoms (headache, fatigue) possible initially as heavy metals mobilise. Always choose 'broken cell wall' or 'cracked cell' chlorella.

Is Chlorella safe?

Same contamination concerns as spirulina (cyanotoxins, heavy metals from growth water). Must use broken cell wall form — intact cell wall is not digested. May interact with warfarin (vitamin K content).

How does Chlorella work?

Chlorophyll and its metabolites chelate heavy metals (mercury, lead, cadmium) in the GI tract, reducing absorption and facilitating excretion. CGF (a mixture of nucleic acids, amino acids, polysaccharides) stimulates immune cell proliferation and wound healing. Chlorella polysaccharides activate macrophages via TLR-2 and TLR-4.

Who should take Chlorella?

Those with heavy metal exposure (dental amalgams, high fish consumption, industrial exposure), vegans wanting nutrient density, and those wanting a natural immune and detox support.

Related Ingredients

SpirulinaMoringa (Moringa oleifera)Glutathione (Reduced / S-Acetyl)

Medical Disclaimer

Ingredient profiles are for informational purposes only and do not constitute medical advice. Consult a qualified healthcare professional before starting any supplementation, especially if you have pre-existing conditions or take medications. Full disclaimer →