Overview
What is horny goat weed?
What are horny goat weed’s main benefits?
What are horny goat weed’s main drawbacks?
How does horny goat weed work?
Dosage information
Testosterone boosting effects in rats have been noted at a dosage of 200mg/kg of a 40% extract (80mg/kg Icariin), and based on body weight conversions from rats to humans[1] this results in an estimated human dose of:
- 900mg Icariin for a 150lb person
- 1,200mg Icariin for a 200lb person
- 1,500mg Icariin for a 250lb person
Studies that use a lower dosage of Icariin (1-10mg/kg) are approximately equal to:
- 11-110mg Icariin for a 150lb person
- 15-150mg Icariin for a 200lb person
- 18-180mg Icariin for a 250lb person
The human study on postmenopausal women and bone health noted that 60mg Icariin daily was active, and might serve as the lowest active dose currently known. It also appears to fall within the above range of lower active dosages which show benefits in rats.
Examine Database: Horny Goat Weed
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References
Examine Database References
- Estrogen - J Li, L Lee, Y Gong, P Shen, S P Wong, Stephen D Wise, E L YongBioassays for estrogenic activity: development and validation of estrogen receptor (ERalpha/ERbeta) and breast cancer proliferation bioassays to measure serum estrogenic activity in clinical studiesAssay Drug Dev Technol.(2009 Feb)
- Bone Mineral Density - Zhang G, Qin L, Shi YEpimedium-derived phytoestrogen flavonoids exert beneficial effect on preventing bone loss in late postmenopausal women: a 24-month randomized, double-blind and placebo-controlled trialJ Bone Miner Res.(2007 Jul)
- Bone Mineral Density - Shi S, Wang F, Huang Y, Chen B, Pei C, Huang D, Wang X, Wang Y, Kou S, Li W, Ma T, Wu Y, Wang ZEpimedium for Osteoporosis Based on Western and Eastern Medicine: An Updated Systematic Review and Meta-Analysis.Front Pharmacol.(2022)