What was your prescribed supplement dose?

For those of you taking supplements, how many mg is your prescribed dose? I was prescribed 300g to take 2x daily (total 600mg) of JampFer

I have iron deficiency without anemia, so not anemic, but have a very low ferritin (of 4) !

I’ve only been taking 1 pill so far as this shit (ironic choice of words) is constipating as fuck!