I consider magnesium, EFA, ALA, and curcumin to be more more protective than an ANSI or Snell certified helmet when I worry about concussions. The secondary effects are what get you....the neurometabolic cascade.

Diminished brain resilience syndrome: A modern day neurological pathology of increased susceptibility to mild brain trauma, concussion, and downstream neurodegeneration

Dietary Concerns and Concussions | The Concussion Blog

Concussions: What a neurosurgeon should know about current scientific evidence and management strategies

http://www.upmcphysicianresources.co..._SpecEd_11.pdf

BHERI | Advances in TBI Management