Very well said tourist and I agree whole on that one. Organic way is always better, but in some difficult cases inorganic iron compounds like ferrous sulphate must be administered, when pros outweigh the cons. The natural way of fixing anemia has only one drawback, it's much slower. Do not expect to fix it naturally as soon as with over-the-counter medicines. Some exceptions to this would be liquid chrolophyle, which is over-the-counter but relatively "natural" and it is said to replenish haemoglobine very fast and gives very quick results. It is usually given to pregnant and breastfeeding mothers to fight the iron loss. But it takes some time to refill iron stores.
Okay, let's start on the first misconception. Your ferritin or iron reserves might be very low, yet you might not have anemia, but the body will not be functioning at its peak. The body always struggles to keep the situation in the blood smooth. So when the bloodwork shows bad situation, it means it is so bad that the body cant cover it up anymore. Anemia shows when your iron reserves have already been depleted, so if you have (iron deficiency) anemia your ferritin is already low.
You have probably noticed that "normal" iron references for women are lower than those for men. This is not so because women naturally have less iron, but because of women's higher iron demands, they are generally low on iron. The "normal" values that are driven so low reflect the poor nutritional status of women nowadays, rather than their lesser needs.
Further of interest for men and women with hair loss and related to this, if you have fixed anemia and wonder why is your hair lost due to anemia not growing back, the answer is most likely that you need to raise ferritin levels >70-100. God has designed the body to keep and preserve you. The body is making sure your heart and other vital organs have enough iron to function in the future, even though there is enough for blood cells, the body doesnt want to waste resources. Once you raise your ferritin and cause it to abound, the body will be enabled to also put iron into "external" members like hair and nails. Even if you had hair loss for any other reason, iron will most likely help you in this regard. This only goes further to show that what doctors call "normal" is far from "optimal".