If i have very low iron levels in my blood history of gastric bypass...and supplements aren't helping lunch, what would he the next best step?

Low iron levels: Your clinician needs to review your entire record, history, and complete an examination on you. This is a tricky situation. By your question, you are associating the bypass surgery with the iron deficiency. While you may be correct, there are other causes for iron deficiency, as with a myriad of colon problems (colon cancer, i.e.) that must be considered. Seek help as soon as possible.

You need : A full hematological and GI workup to determine the cause of your iron deficiency anemia.

Common problem: After gastric resection , due to by passing duodenum iron is not absorbed , will have low serum feritin levels , especially bigger problem in young females , need to take more oral iron , iron containg foods like liver , meats , oysters etc. Vit c found to help iron absorption , must take vitamin c with ferrous sulfate , rarely need parental adminstration of iron in severe cases.