What is what level is best for iron?

Iron levels are generally recommended to be between 10 and 30 nanograms per milliliter (ng/mL) for adults. However, optimal levels for iron may vary depending on age, gender, and individual health status. Iron levels that are too low may lead to iron deficiency anemia, while levels that are too high may result in iron overload and damage to organs. It is important to speak with a healthcare provider to determine the appropriate level of iron for individual needs.