hi, sorry for late response, fucked my self whit supplements, needed to wait it pass…this is how i cured my brain fog…i do believe adequate zinc levels would prevent crash from happening u can find lot of people crash on fin after stress, and they have digestion problem witch is zinc and also have dry eyes some of them witch is low zinc witch enaybles vitamin A absortion, no libido, tissue change on dick also zinc, plus inability to fully erect zinc also, but, once you develop brain fog, zinc wouldnt fix it anymore… my cognitive symptomes were presure inside head, brainfog, derealization, i even had dislexia for a moment 2 times after jim, couldnt form a normal sentence…so i did carnivore diet this was 3 years ago, presure inside of my skull went awey permamently in 3 days, and brain fog too but would comeback when i eat carbs, than a year ago i took some bile with some pancreatic enzymes, and day after that it was completly gone and funny thing all i learn in all the years i had brain fog came back, and i was talking to people and i had informations that i didnt know when i even learn it…it was like importing usb with 3 years of learning expirience over night. so try going carnivore and try talking betain or apple cide vinegar capsules in my expirience betaine is stronger, appv doesnt do shit, but some people crash on betaine since is metyl donor i took 4 bottles and nothing, probably because on keto/carnivore you produce keton bodies and one of it is sodium bytirate if im not mistaken witch remove metyl groups, also pancreatic enzymes, and bile salts…also i was diagnosed with helico bactter that was fucking my digestion, so might check that or candida…also would be good to take but only active form, couse sintetic doesnt do shit, of b1(benfotamine), b2 riboflavin5phosfate and niacinamid they are good cause they support metabolisam. also u can support glutation with nac selenium vitamin c and try zinc of course.