SO DYK
GENERAL IMMUNITY

Lion's mane

Hericium erinaceus

also known as Yamabushitake, Hou tou gu

Moderate (cognitive support)

A shaggy white mushroom that grows on hardwood trees, looking like a small lion's mane or a frozen waterfall. Modern research focuses on the brain — lion's mane contains compounds that stimulate nerve growth factor, with early but real evidence for cognitive support and mood.

  • May support cognitive function, particularly in older adults with mild cognitive decline
  • Stimulates production of nerve growth factor — a protein the brain uses to maintain and repair neurons
  • May ease mild anxiety and depression
  • Supports digestive lining and may help with mild gastritis and ulcer recovery
  • Antioxidant and anti-inflammatory action
  • Generally well tolerated and considered a safe culinary mushroom

Active in Hericenones, Erinacines, Beta-glucans.

Can trigger allergic reactions in people sensitive to mushrooms — start with a small dose
May lower blood sugar — caution with diabetes medication
Mild blood-thinning effect — caution with blood thinners
Stop two weeks before surgery
Limited safety data during pregnancy and nursing — skip to be safe
Effects on cognition build over weeks to months — not a same-day stimulant