PlainPill

Chlorella

People mainly take Chlorella for energy. Based on 17 first-hand reports and 21 meta-analyses & systematic reviews in the medical literature. Ranked #1417 of 1,974 overall.

13
User score
Not enough data
0% positive0% mixed6% negative94% unclear

Of reports that state an outcome, 0% are positive.

Clinical research
AStrong research base
21
meta-analyses
26
RCTs
9,746
papers

What Chlorella does, according to users

Of the people who reported each effect, the share who said it got better.

betterno changeworse

What the research says

Systematic reviews and meta-analyses from PubMed, with their published conclusions.

AStrong research base

3+ meta-analyses or systematic reviews and 10+ randomized controlled trials in humans. The grade measures how much human research exists — read the conclusions below for what it found.

Nutrients · 2020 · Meta-analysis / systematic review
Dietary Interventions in the Management of Fibromyalgia: A Systematic Review and Best-Evidence Synthesis

Conclusion: Interpretation of these studies was limited due to the frequent poor quality of the study design, the wide heterogeneity between studies, the small sample size and a high degree of bias. Therefore, there is insufficient evidence to recommend any one particular nutritional intervention for the management of fibromyalgia and further research is needed.

PubMed 32878326 ↗
Nutrients · 2020 · Meta-analysis / systematic review
Nutritional Interventions in the Management of Fibromyalgia Syndrome

Conclusion: These results may suggest that weight loss, together with the psychosomatic component of the disease, should be taken into account. Therefore, although dietary aspects appear to be a promising complementary approach to the treatment of FM, further research is needed to provide the most effective strategies for the management of FM.

PubMed 32825400 ↗
Front Pharmacol · 2025 · Meta-analysis / systematic review
Systematic review and network meta-analysis of the effects of plant active substance on quality of life in breast cancer patients

Conclusion: The network meta-analysis indicates that Withania somnifera was effective in enhancing quality of life and contributed to a reduction in therapeutic side effects in BC patients. Our findings support the therapeutic potential of plant bioactive substances in breast cancer care; however, further clinical validation of their efficacy is warranted.

PubMed 41394145 ↗
Best Pract Res Clin Rheumatol · 2003 · Meta-analysis / systematic review
Complementary and alternative medicine in fibromyalgia and related syndromes

Conclusion: Other CAM therapies have either been evaluated in only one RCT with positive results (Chlorella, biofeedback, relaxation), in multiple RCTs with mixed results (magnet therapies), or have positive results from studies with methodological flaws (homeopathy, botanical oils, balneotherapy, anthocyanidins, dietary modifications). Lastly, other CAM therapies have neither well-designed studies nor positive results and are not currently recommended for FMS treatment (chiropractic care).

PubMed 12849718 ↗

Dosage people report

As stated by users — not a recommendation. Follow the label or your doctor.

dailyas reported
5 gdaily
20-40 gdaily

Reported side effects

How often each side effect came up across all reports.

No side effects reported so far.

What users say

Verbatim quotes, shortened only — each links to the original discussion.

Other options for energy

User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate