Full page update
The FAQs were updated and additional information added. With most research being done in animals and no meta-analyses, the effects of ecdysteroids in humans remains uncertain.
Ecdysteroids are a type of steroid hormone found in arthropods, where they are responsible for reproduction and molting. Evidence for the use of ecdysteroids in humans is lacking, but they are often used to improve athletic performance and to stimulate muscle growth and are purported to have multiple other health benefits.
Ecdysteroids is most often used for
Last Updated:April 29, 2024
Ecdysteroids are polyhydroxylated ketosteroids that are similar to androgens and are primarily found in insects for molting and in certain plants for protection against herbivores. They differ from human androgens in structure and do not produce the same hormone-related side effects; phytoecdysteroids are more commonly used in supplements.
Ecdysteroids are primarily recognized for their potential benefits in enhancing athletic performance and muscle growth, and some evidence from studies on humans and animals supports these claims. Additionally, they may have antiobesity effects, improve metabolic health, and show promise in cancer treatment, though further research in humans is necessary to confirm these benefits.
The main drawbacks of ecdysteroids include a lack of research on human dosing and uncertain safety, despite some studies that showed no significant adverse effects in young men and other mammals. Additionally, commercially available ecdysteroid products are unregulated, which raises concerns about their content and dosage accuracy.
Ecdysteroids work in mammals through various mechanisms, including binding to G-protein coupled receptors in the renin-angiotensin system, which may enhance muscle protein synthesis, and activating estrogen receptor beta, which is also associated with muscle growth. Additionally, ecdysterone increases calcium influx and Akt phosphorylation, which further contribute to its potential effects on muscle development.
There is not enough research to recommend a specific dosage for each possible use of ecdysteroids, and most of the available research has been done on animals.
Studies seem to show a dose-dependent response for hyperglycemia (high blood sugar). In in vivo liver cells from both diabetic and nondiabetic rats, higher doses of ecdysone resulted in a greater suppression of glucose production. However, research in humans is lacking, and there is not enough evidence to recommend a specific dose for people with diabetes.[1][2]
For use in athletes, one study suggested 5 mg per kg of body weight as an effective dose but also noted that higher doses showed greater improvements in strength.[3] Another study found that 200 mg daily was ineffective for improving body composition.[4]
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Full page update
The FAQs were updated and additional information added. With most research being done in animals and no meta-analyses, the effects of ecdysteroids in humans remains uncertain.