Quick answer: Lion's Mane compounds support nerve growth factor in lab studies, and a small 16-week trial in older adults with mild cognitive impairment found better scores at about 3 g of mushroom a day.
What it is
A white, shaggy mushroom (Hericium erinaceus) used in East Asian cooking and medicine.
The research
Lab studies show hericenones and erinacines encourage nerve growth factor. A small Japanese trial found improved cognitive scores in older adults taking mushroom powder for 16 weeks, which faded after stopping. PubMed: Lion's Mane trials.
Safety
Generally well tolerated; avoid with mushroom allergy.
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General information, not medical advice. Golden Brain is a dietary supplement and is not intended to diagnose, treat, cure or prevent any disease.