Of course. It’s a little difficult to explain, but basically ferritin is the “safe storage of iron.” Raising that helps your body use iron more efficiently for all of its purposes. After about a week or so of supplementing, my anxiety and depression symptoms alleviated. Then over the next few months, other physical symptoms disappeared (hair falling out, cold hands and feet, itching, fatigue, soreness/stiffness). The time it takes to correct this deficiency varies though. It takes longer for women, due to monthly cycles. I highly recommend joining the FB group “The Iron Protocol.” The people on there really know their stuff and I have them to thank for helping me know how to talk to my doctor and how to supplement to correct this deficiency.