Taking Jarrow B Right atm, the % s are well in excess of RDVs, especially for Methylcobalamin and B1- probably why it makes me feel jittery if taken too often

Yes good point - I forgot to mention Omega 3s, currently getting these from avocados and avocado oil.... whenever I try to supplement high strength fish or Krill oil for any period of time, I get seriously depressed (my money is on the choline). Same thing happens with eggs!

I've been looking into Lions Mane for brain health and PCS, any insight on this?