Across 132 first-hand reports, people mentioned a side effect 7 times (about 5 per 100 reports). The most common: maple syrup, insomnia, 5-ar inhibition. User reports show what people notice — they can't tell you whether Fenugreek is safe for you.
“I've already taken turkesterone, fenugreek, tribulus, and ashwagandha consistently but it didn't have much of an effect to be honest.”
“Nasal Breathing is very much improved and i feel like i can smell things much more intense or just better”
“What I have tried with little to no success over the last 5 years is Maca, Shilajit, Tongkat, Tribulus, Fenugreek...”
“I was sad to see both pumpkin seed AND fenugreek in infinifiber. As someone sensitive to 5-ar inhibitors, both really mess me up.”
Conclusion: There is no high quality evidence to support the effectiveness of any dietary supplement for dysmenorrhoea, and evidence of safety is lacking. However for several supplements there was some low quality evidence of effectiveness and more research is justified.
Conclusion: Also, further research is required before definitive conclusions on efficacy and safety can be made. This systematic review was registered at PROSPERO as CRD42020173623.