Lever
Lifestyle
- Regular exercise
- Adequate sleep
- Stress management
Blutwerte · Marker
TIBC
Total Iron Binding Capacity · Totale Eisenbindungskapazität
Eisen & Anämie
- Einheit:
- µmol/L
TIBC quantifies the total capacity of the blood to bind iron with transferrin.
Reference Ranges
Reference
45–72µmol/L
45
72
LowNormalHigh
Reference
Unit · µmol/LRanges may vary slightly based on laboratory standards and methods.
Overview
Übersicht
Total Iron Binding Capacity (TIBC) is a blood test that measures the maximum amount of iron that can be bound by proteins in the blood, primarily transferrin. It is an indirect measure of transferrin, the main protein that binds iron and transports it in the bloodstream. Clinically, TIBC is used to assess iron metabolism and diagnose conditions like iron deficiency anemia (IDA) and hereditary hemochromatosis. Elevated TIBC is typically observed in IDA, reflecting increased transferrin production in response to low iron levels. Conversely, low TIBC can indicate conditions such as chronic diseases or hemochromatosis, where iron overload occurs. For athletes and biohackers, understanding TIBC can be crucial for optimizing performance and longevity, as it helps in assessing iron status, which is vital for oxygen transport and energy metabolism. However, TIBC results can be influenced by factors like inflammation, liver disease, and nutritional status, making it essential to interpret in conjunction with other iron markers like serum ferritin and transferrin saturation. Researchers found that TIBC levels can vary with age, sex, and health status, and it is important to consider these variables when evaluating TIBC results.
Klinische Bedeutung
Elevated TIBC suggests iron deficiency anemia, where transferrin levels increase to capture more iron. Reduced TIBC may indicate iron overload conditions like hereditary hemochromatosis or chronic inflammatory states.
Dynamics
Trend Interpretation
Rising Values
Progressively rising TIBC values may indicate worsening iron deficiency. Retesting is recommended every 4-6 weeks if outside the optimal range.
Falling Values
Progressively falling TIBC values could suggest improving iron status or the onset of iron overload conditions.
Re-test Interval
4 weeks if outside optimal range
Etiology
Causes — High & Low
Cause
Elevated Levels
- Iron deficiency anemia
- Pregnancy
- Oral contraceptive use
- Acute hepatitis
- Blood loss
Cause
Low Levels
- Hereditary hemochromatosis
- Chronic inflammation
- Liver disease
- Malnutrition
Protocol
How to Optimize
Lever
Nutrition
- Increase dietary iron intake
- Consume vitamin C-rich foods
- Avoid excessive tea or coffee
Lever
Supplementation
- Iron supplements
- Vitamin C supplements
Note:
Consult a physician before starting iron supplementation, especially if iron overload conditions are suspected.
Testing Guidelines
✓Fasting Not Required
✓Not Time-Sensitive
Iron levels can vary throughout the day; morning tests are preferred.
Testing Frequency
Annually for individuals with known iron metabolism disorders or symptoms of anemia.
Interfering Factors
- Recent blood transfusion
- Acute illness
- Hormonal contraceptives
Related Peptides & Hormones
Hepcidin
hormone or peptideCorrelated with
Open Research Questions
Current research suggests that reference ranges for total iron-binding capacity (TIBC) may vary significantly across populations, and optimal targets for TIBC in diagnosing conditions like iron deficiency anemia remain debated. Researchers have not yet established the impact of confounders such as inflammation or liver disease on TIBC levels. Additionally, clinical questions remain unanswered regarding the best strategies for differentiating between iron deficiency anemia and other forms of microcytic anemia based on TIBC results.
37 Research Publications
1,674
Total Citations
27
Human/RCT
9.1
Avg. Influence
2025
Latest
Sort
Filter
01Top
#01
A malnutrition-inflammation score is correlated with morbidity and mortality in maintenance hemodialysis patients.
HumanInfluence65.0
951
Researchers developed a comprehensive Malnutrition-Inflammation Score (MIS) for maintenance hemodialysis patients, incorporating total iron-binding capacity as a key component. They found that the MIS correlated significantly with hospitalization and mortality rates, suggesting it may be superior to conventional measures in predicting outcomes in these patients.
02Top
#02
Laboratory diagnosis of thalassemia.
UnknownInfluence9.0
204
Researchers found that thalassemia carriers present with microcytic anemia and require careful differentiation from iron deficiency anemia. They highlighted the importance of measuring iron status and using specific tests like HbA2 determination to accurately identify thalassemia carriers.
03Top
#03
Effect of Low-Dose Ferrous Sulfate vs Iron Polysaccharide Complex on Hemoglobin Concentration in Young Children With Nutritional Iron-Deficiency Anemia: A Randomized Clinical Trial.
HumanInfluence3.0
123
04
#04
Glycosylation of the self-recognizing Escherichia coli Ag43 autotransporter protein.
In VitroInfluence4.0
115
This study introduced a novel glycoprotein in Escherichia coli, showing that the Ag43 protein is glycosylated, which enhances bacterial binding to human cells. Researchers found that glycosylation did not affect the protein's self-associating properties, indicating its potential biological significance.
05
#05
Evaluation of microcytosis.
Van Vranken Michele · American family physician · 2010
Unknown
50
Researchers found that microcytosis is often an incidental finding linked to conditions like iron deficiency anemia and thalassemia. They emphasized that serum ferritin is the first recommended test for evaluation, and further tests like total iron binding capacity are necessary for accurate diagnosis.
Key findings
- 01Researchers found that microcytosis is usually discovered incidentally during blood tests.
- 02They observed that low ferritin levels indicate iron deficiency, which is often due to blood loss, primarily from the gastrointestinal tract.
- 03The study noted that additional tests may be needed if ferritin levels are not low to determine the cause of microcytosis.
06
#06
Blood biomarker profiles and exceptional longevity: comparison of centenarians and non-centenarians in a 35-year follow-up of the Swedish AMORIS cohort.
Murata Shunsuke, et al. · GeroScience · 2024
HumanInfluence3.0
35
Researchers found that centenarians exhibited more favorable biomarker profiles, including higher iron levels, compared to their shorter-lived peers. They observed that these differences in biomarker values appeared over a decade before death. The study suggests that certain biomarkers may be linked to exceptional longevity.
Key findings
- 01Higher levels of total cholesterol and iron, along with lower levels of glucose and other biomarkers, were linked to reaching age 100.
- 02Centenarians showed consistent and favorable biomarker profiles starting from age 65.
- 03Differences in biomarker values between centenarians and shorter-lived individuals indicate that genetics and lifestyle factors may play a significant role in longevity.
07
#07
Revisiting Iron Metabolism, Iron Homeostasis and Iron Deficiency Anemia.
Review
34
Researchers found that iron deficiency anemia (IDA) is prevalent globally, affecting around 2 billion people. They highlighted that laboratory features of IDA include low serum iron, decreased transferrin saturation, and increased total iron binding capacity. The study emphasized the importance of identifying the underlying causes of IDA for effective management.
08
#08
Genome-wide meta-analysis of iron status biomarkers and the effect of iron on all-cause mortality in HUNT.
Meta-AnalysisInfluence3.0
33
This genome-wide meta-analysis examined iron status biomarkers and their effects on all-cause mortality. Researchers found evidence of harmful effects associated with increased serum iron and transferrin saturation, contributing to understanding the genetic factors influencing iron status.
09
10
#10
The effect of vitamin C supplementation on lactating women in Keneba, a West African rural community.
Human
30
Publication Trend
Research publications about TIBC over time
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