please investigate and consider Transfer Factor. It is nano filtered bovine colostrum, it educates and modulates the immune system while increasing NK Cell activity by over 200% (Classic TF's) and up to 437% with TriFactor Plus (blend of mushrooms and cordyceps with TF's). Also read about Glutamine Prime and Pre/O.
Glutamine (prime) is the precursor to glutathione, a "food" our bodies convert into glutathione, the most abundant antioxidant our bodies make.
Pre/O is a pre and probiotic in one, no refrigeration needed, and the patented delivery method allows the probiotic to travel the treacherous journey to the colon without loosing any of its potency.
100% delivery to the large intestine where it is able to populate the gut.
As I'm sure you know, gut/brain health are synced!
They're bundled into the Immune IQ starter pack. Life changing.
Transfer Factor was discovered in 1949 by H. Sherwood Lawrence while he was researching a cure for tuberculosis. The patent was filed, but shelved, vaccines were brought about. The patent was discovered by David Lisonbee in the 1990's, he acquired the patent and started the company 4Life in 1998. The company has always been based in Sandy Utah,  but the products are more known over seas than here in the USA. It's hidden in plain sight, it's been in the Physicians Desk Reference for 15 years consecutivly.  There is no found level of toxcisity as we already have these factors in our white blood cells. 
Please ask me any and every question if you have any, I am passionate about this modality!
<a href="http://www.4Life.com/garen" target="_blank">www.4Life.com/garen</a>

NAC, Methyl B12, Methyl Folate, Ashwaganda, Spirolina, Choline, Rhodiola, Ginseng, Omega 3 with EPA and DHA... Avoid dairy, gluten, soy, corn and sugar. Plant based protein powder smoothie with branched chain amino acids and add MCT oil. They also suggested milk/cheese alternatives like A2. Also multivitamin/neurovite and others from BrainMD website.

Keto has been used to promote brain healing. Annette Bosworth (Dr Boz) has great YouTube videos.

aleodragon's Answers

Have you gotten doctor/nutritionist recommendations for diets/supplements that are better for TBI survivors?