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Ecdysterone and strength training: an early human experiment

One short study reported greater muscle and bench-press gains. It does not establish broad effectiveness or long-term safety.

Read the evidence ↓

Supplement Science Insights Editorial Team

Published September 23, 2026

The study and its comparison

A ten-week intervention studied forty-six young men undertaking strength training with different ecdysterone-containing supplement regimens. Researchers also analyzed the administered supplement for anabolic-steroid contamination. [1]

The report described greater increases in muscle mass and one-repetition bench press performance in supplemented participants. It did not observe increases in the measured liver or kidney toxicity markers. [1]

What the finding establishes

The abstract does not fully describe allocation, blinding or each comparator, limiting independent design appraisal. Normal short-term biomarkers cannot prove long-term safety. Findings about ecdysterone should not be assigned to every insect-hormone product. Funding and complete conflicts were not established from the retrieved record; no current sports-rule claim is made here. [1]

A hypothetical distinction

Imagine a short training study shows a performance difference. That does not establish years of safe use or equivalence between products.

Interpretation checklist — Ecdysterone and strength training
DetailInterpretation
Measured outcomeKeep the endpoint specific
Study preparationNot every retail product
Remaining uncertaintyNot resolved by a mechanism
Ecdysterone and strength training: an early human experiment — original article outline diagram
Original editorial diagram of this article’s sections; no product photograph or clinical finding is depicted.

Sources for this article

  1. Ecdysteroids as non-conventional anabolic agent: performance enhancement by ecdysterone supplementation in humans.
    Source consulted: 2026-09-19. This is a reference resource, not a claim that we conducted the studies or tested a product.