are best absorbed with Vit C. I've heard/read this for years. I'm not anemic but do have lower levels of Ferritin so I do take some iron supps but do take C with it. From all I read, iron can constipate. I dread taking for that reason, but continually work to keep ferritin up.
I would look into maybe a more quality iron supp. That could make a diff. Floridex is an herbal. Standard Process may have some good iron supps and SP products are food based. Just a suggestion.