Stinging Nettle and blood sugar

What 2 graded rows on stinging nettle agree on for blood sugar, and where they differ. Counted side by side, never averaged.

Consensus finder Rows from the Stinging Nettle page, reviewed Oct 21, 2026 How it decides

What the rows agree on

Each block and row is one graded row from the Stinging Nettle page, with its PubMed record.

Supplement

Stinging Nettle Choose another

2 rows · 493 people

They agree: both rows found an improvement.

No difference

Improved

Each block is one evidence row, sized by how many people it enrolled, with its grade inside.

From the rows

The best-graded row, grade C, is a meta-analysis of 401 people (2020) and found an improvement.

The rows run from 92 to 401 people, published from 2013 to 2020: 1 pooled review and 1 single study.

2 improved

Grade CBlood sugar in type 2 diabetes · Improved
Meta-analysis, 8 studies · n 401 · 2020 · Adults with type 2 diabetes in 8 RCTs
Varied across trials · Varied across trials
Fasting glucose fell 18 mg/dL versus control, with very high heterogeneity (I² 95%); insulin, insulin resistance and HbA1c did not change significantly.
Row on the Stinging Nettle page · PubMed 31802554 (opens PubMed)
Grade DBlood sugar in advanced type 2 diabetes · Improved
RCT · n 92 · 2013 · Adults with type 2 diabetes needing insulin, on oral diabetes drugs
500 mg every 8 hours · 3 months
Fasting glucose, 2-hour post-meal glucose and HbA1c fell versus placebo, with no change in kidney or liver tests or blood pressure.
Row on the Stinging Nettle page · PubMed 24273930 (opens PubMed)