I don't take B1 and Mg at the same time because the information on the
acu-cell site indicates that they are antagonists.
"Magnesium Synergists:
Chromium, zinc, boron, CoQ10, Vitamin B2,
Vitamin B6, insoluble fiber, [calcium,* Vitamin D*].
Magnesium Antagonists / Inhibitors:
Sodium, potassium, iron, selenium, copper, lithium,
silicon / silica, manganese, Vitamin A,
Vitamin B1,
Vitamin C, Vitamin E, niacin / niacinamide, PABA,
Vitamin K, folate, choline, uric acid, alcohol, w6 (e.g.
primrose, pumpkin seed oil), [calcium,* Vitamin D*].
* Most of the above are dose-dependent. They are co-factors at normal levels, and antagonists at higher levels."
Very interesting. Vitamin B1 was not starred. I wish they had a source reference.
Since the B vitamins may wash out of the system within 4-5 hours, I guess taking magnesium after that period and/or at night would be best.
Patients with magnesium deficiency are at risk of thiamine deficiency because magnesium is a cofactor in transketolase reactions and in the conversion of thiamine to TPP.
http://www.todaysdietitian.com/newarchives/100610p78.shtml