For iron deficiency (and all anemia), I utilize Desiccated Liver Pills.
When our ancestors ate meat, they ate the whole animal- including the organ meat. Liver contains the one of the highest concentrations of iron in the world of food. While many people still eat and enjoy liver, many people do not enjoy the taste or texture. I find the Desiccated Liver Pills to be the perfect balance. They provide a naturally occurring source of iron without needing to restructure the entire diet.
Traditional Chinese Medicinal Herbal therapy utilizes the power of herbs to boost the iron content of the blood in the short term- while also treating the underlying hemoglobin deficiency and the imbalances that caused it. Proper herbal consulting can assist in bringing more oxygen to your blood cells, resulting in more normal blood oxygen and iron levels.
With herbalism, you may experience reduced brain fog and reduced exhaustion as well as an easier time exercising, sleeping, and maintaining energy levels.
Best of luck to you!