From the Guidelines
Ideal Ferritin Range for a 35-year-old Female
An ideal ferritin range for a 35-year-old female is between 30-100 ng/mL, with a target level of at least 50 ng/mL to ensure adequate iron stores and prevent deficiency 1.
- Levels below 30 ng/mL may indicate iron deficiency, while levels above 100 ng/mL may suggest iron overload or other underlying conditions.
- It is essential to consult a healthcare provider for personalized guidance, as individual needs may vary, especially in the presence of inflammation or chronic diseases 1.
- The American Gastroenterological Association (AGA) recommends using a cut-off of 45 ng/mL when using ferritin to diagnose iron deficiency 1.
- In patients without clinical, endoscopic, or biochemical evidence of active disease, serum ferritin <30 mg/L is an appropriate criterion for the diagnosis of iron deficiency anemia, and in the presence of inflammation, a serum ferritin up to 100 mg/L may still be consistent with iron deficiency 1.
From the Research
Ideal Ferritin Range for a 35-year-old Female
The ideal ferritin range for a 35-year-old female is not strictly defined, but several studies provide insights into the appropriate ferritin levels for women.
- A study published in 2013 2 suggests that ferritin levels < 40 ng/mL indicate iron deficiency, while symptoms can occur at levels < 100 ng/mL.
- Another study from 2023 3 proposes that the physiologic ferritin "cutoff" is 50 ng/mL, and that current reference ranges may lead to underdiagnosis of iron deficiency in women.
- A 2024 study 4 found that ferritin cutoffs of 30 and 45 ng/mL were associated with a higher incidence of iron deficiency compared to 15 ng/mL.
- A 2002 study 5 recommends maintaining ferritin > or = 100 ng/mL for patients with chronic kidney disease, but this may not be applicable to the general population.
- A 2022 study 6 suggests that ferritin levels ≤ 50 ng/mL are indicative of early iron deficiency, and this could be considered a clinically relevant cut-off.
Key Findings
- Ferritin levels < 40 ng/mL may indicate iron deficiency 2.
- Ferritin levels < 100 ng/mL may be associated with symptoms 2.
- A physiologic ferritin "cutoff" of 50 ng/mL has been proposed 3.
- Ferritin cutoffs of 30 and 45 ng/mL may be associated with a higher incidence of iron deficiency 4.
- Ferritin levels ≤ 50 ng/mL may be indicative of early iron deficiency 6.