Chlorella and cholesterol
What 4 graded rows on chlorella agree on for cholesterol, and where they differ. Counted side by side, never averaged.
Consensus finder Rows from the Chlorella page, reviewed Oct 21, 2026 How it decides
What the rows agree on
Each block and row is one graded row from the Chlorella page, with its PubMed record.
Your question
Chlorella and cholesterol
4 rows · 1,433 peopleThey agree: all 4 rows found an improvement.
- BGrade B× 2
- CGrade C× 2
- Rows
- 4
- Trials
- 31
- People
- 1,433
- Pooled reviews may count some twice
What the rows share
From the rowsThe best-graded row, grade B, is a meta-analysis of 797 people (2018) and found an improvement.
The rows run from 34 to 797 people, published from 2014 to 2022: 2 pooled reviews and 2 single studies.
The rows
4 improved- BGrade BCholesterol, blood pressure and fasting glucose · Improved
Meta-analysis, 19 studies · n 797 · 2018 · Adults of varied health status (19 RCTs)
Varied; effects clearer above 4 g/day in subgroup analysis · Varied; effects clearer at 8 weeks or longer
Total cholesterol fell 9.1 mg/dL, LDL 8.3 mg/dL, systolic BP 4.5 mm Hg, diastolic BP 1.6 mm Hg and fasting glucose 4.2 mg/dL; triglycerides, HDL and BMI did not change.
- BGrade BBlood lipids (Chlorella vulgaris) · Improved
Meta-analysis, 10 studies · n 539 · 2022 · Adults (10 RCTs)
Varied; LDL effect seen at doses up to 1,500 mg/day in dose-response analysis · Varied
Total cholesterol fell 7.5 mg/dL and LDL 7.7 mg/dL; triglycerides and HDL did not change. Only 4 trials had low risk of bias.
- CGrade CSerum lipids in mildly high cholesterol · Improved
RCT · n 63 · 2014 · Adults with mild hypercholesterolaemia
5 g/day · 4 weeks (after 2-week lead-in)
Versus placebo, total cholesterol (−1.6% vs 0.03%) and triglycerides (−10.3% vs +11.9%) fell, with lower VLDL and apolipoprotein B and large rises in serum lutein/zeaxanthin and α-carotene.
- CGrade CSerum cholesterol during a dietary cholesterol challenge · Improved
RCT · n 34 · 2016 · Healthy adults eating three eggs (510 mg cholesterol) daily
5 g/day · 4 weeks
Total cholesterol rose 3.5% versus 9.8% on placebo and LDL 1.7% versus 14.3%.