Can Riboflavin/Magnesium cause more frequent urination?

I really recently started taking Riboflavin 200mg a day (for like the past two days) and started magnesium last night (200mg). Can any of these cause a more frequent need to pee? I’ve had to go today like once an hour and I can’t think of anything different I did to cause this.

B2 can cause increased urination.

B2 not only increases urination, it makes it fluorescent! :grin: