Yes I take Mag Glycinate. Its way better than Mag oxide. There were several posts on mag on the thyroid board - info about the different types of mag.
Just wondering about B1, as it is never mentioned.
People may even find greater help from magnesium if they use a really good formula and play with the dose according to their condition. There are also antagonists to magnesium, such as calcium (dairy), among other things. I've also read that there are other things important to helping magnesium in the body, such as antioxidants, good fats, and boron.
Some of the safer and more effective forms of magnesium include: Taurate, Glycinate and Citrate (can be laxitative -- take with food).
I remember the post about magnesium on the thyroid board. Something in there must have been a problem as it was deleted.
The woman "Janie" with a thyroid website had posted about magnesium deficiency and thyroid problems. I found the connection interesting. Especially since the endocrine system and magnesium, as well as the B Vitamin Complex, are so important to handling stress.