https://pubmed.ncbi.nlm.nih.gov/36231177/
“It was concluded that dietary intervention with iron and vitamin C administered separately may be effective in improving iron status in young women to prevent iron deficiency anemia. “
Iron increases the absorption of vitamin C in two ways. First of all, by reviving iron and turning it into a divalent ion, and on the other hand, creating a complex for better absorption of iron, for these reasons, it is recommended to take iron and vitamin C at the same time.
For me, I take a vitamin C pill and then the iron pill. Was told to either do this or drink orange juice, but I skip the juice due to sugar content.
My iron went from very low to normal in a decent period of time, so it might be working in me, haha.