Very interesting, thank you for sharing, Deckard. It's great to hear that your family member is doing better cognitively
On the topic of MgT, here's an interesting blog post by Carolyn Dean on it, published in March this year:
Link
She notes the difference between MgT and magnesium citrate: "I reread the L’threonate study to confirm that
there was only a 7% increase in magnesium in the CSF compared to magnesium citrate." (She's talking about an older study by the same people/MIT, I think)
Dr. Dean emphasizes that MgT is not the only magnesium that can cross the blood brain barrier, and writes that "probably any magnesium would produce some of these effects". She also refers to an abstract that says: "It is evident that magnesium enters the CNS through the BBB and is
actively transported by choroidal epithelial cells into the CSF."
It would be nice if the study could be replicated with other forms of magnesium. I'm still taking Carolyn Dean's ReMag product which is 100% absorbed at the cellular level, and it's one of my favorite supplements. However, I may give MgT a try once my product is finished, as I'm curious!