Cordyceps side effects
Across 487 first-hand reports, people mentioned a side effect 15 times (about 3 per 100 reports). The most common: drowsiness, anxiety, insomnia. User reports show what people notice — they can't tell you whether Cordyceps is safe for you.
Reported side effects
drowsiness4
anxiety4
insomnia2
hypertension1
stomach issues1
sexual distraction1
possible prostate1
acne1
What got worse for some people
In their own words
“A few grams in the morning mixed in with water, I feel more alert throughout the day and have more energy but have trouble falling asleep and wake up early.”
“Cordyceps is by far one of the best nootropics I've ever tried... I can sleep for 8 hours straight and feel like a million bucks.”
“I'm fucking amazed every time I take it...I get completely distracted by thoughts of sex. It's insane the difference it makes. Ramps right the eff up.”
“Depression and anxiety are gone, I have a lust for life again (and for my husband!)”
“cordyceps does too but with stronger cognitive effects, both eventually wreck my sleep though.”
“I have been using the original Cordyceps extract every day, and I love it! Everyone I get to try it loves the stimulation and energy it gives.”
Is Cordyceps safe? What the research covers
AResearch: Strong21 meta-analyses · 32 randomized trials on PubMed
None of the top reviews we found focus on safety. All research on Cordyceps.