personally, i have not tried it. i'd go for making sure my dietary magnesium levels were up (to ensure beneficial cofactors were going in as well), plus supplemental mag glycinate if and as needed (about half the cost of mag threonate), and see where i was at using symptoms as well as serum levels, before i invested in a new supplemental form.
odd sx? no dx? check w/ dietitian
DRI=MINIMUM eg bit.ly/1vgQclQ
99% don't meet these. meds/lifestyle can affect levels
status can be low in ms & other cond'ns
'but my results are normal'. typical panels don't test all
deficits occur in 'normal' range