I'm supplementing,
vit D3 with K2, tablets
Magnesium capsules. Also taking levothyroxine 100mcg.
Id like to add selenium, but am not sure which brand is best, I'd be very grateful for any advice regarding which one is best. ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ๐ธ