Below is an instruction that describes a task. Write a response that appropriately completes the request. ### Instruction: Iron/vitamin D low even when supplementing?26F, 133lbs, 56 Non-smoker, no recreational or pharmaceutical drugs.I recently had my ferritin retested as Im supplementing to raise my levels. Around a year ago it was 44 (ug/L) and now after taking supplements every other day its gone down to 26. My vitamin D (I take between 2000 to 4000 daily depending on the weather) is the exact same at 92 (nmol/L).Additionally looking at my blood work results my TSH went from 2.62 mIU/L to 1.29. My hematology/differentials are also all on the lower side and my MCH was flagged by the lab.All this being said, my doctor assured me my bloodwork is fine (I dont feel fine hence the bloodwork). Hoping to gain some insight into what could be causing this please.. ### Response: Make sure you take Iron with OJ/Vitamin C and Vitamin D with food..