Supplements as a thing is not exactly regulated. Was taking a bunch of them and my liver function numbers were too high when they ran tests during hospital admission. I asked the doctor about the high numbers during a follow up, and he told me to stop taking them for a month so that they could redo the liver function test after that to see if it was my liver or the supplements. It was the damn supplements cos my numbers were normal again. Supplement dosage is normally way too much for what the body needs..

Speaking of magnesium supplement, Alpro Sugi (if you live near one) has their own in house brand magnesium bisglycinate: one bottle of 60 is RM58, 2 bottles for RM100? If not, most of the usual pharmacies might also have... or just ask the pharmacists working there. Don't ask a bunch of forum randos LOL