Hemoglobin
Hemoglobin is the iron-rich protein in red blood cells that carries oxygen from lungs to tissues throughout the body.
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Conventional Range
12.0 - 17.5 g/dL
Optimal Range
13.5 - 16.0 g/dL
Why It Matters
Hemoglobin levels directly impact oxygen delivery to tissues, affecting energy, cognitive function, and overall health.
If Your Level Is High
High hemoglobin may indicate polycythemia, dehydration, lung disease, or living at high altitude.
Possible Causes
- Polycythemia vera
- Dehydration
- Lung disease
- High altitude
If Your Level Is Low
Low hemoglobin (anemia) causes fatigue, weakness, shortness of breath, and can indicate iron deficiency, chronic disease, or blood loss.
Possible Causes
- Iron deficiency
- B12/folate deficiency
- Chronic disease
- Blood loss
How to Optimize
Address underlying causes, ensure adequate iron/B12/folate intake, treat chronic conditions, consider supplements or medications as directed.
Dietary Factors
- Iron-rich foods
- Vitamin C
- B12
- Folate
Lifestyle Factors
- Altitude
- Smoking
- Hydration status
Supplements That Affect This Marker
| Supplement | Effect | Strength | Dosage |
|---|---|---|---|
| Iron Bisglycinate | Increases | Strong | 25-50 mg elemental iron daily |
| B-Complex | Increases | Moderate | B12: 500-1000 mcg, Folate: 400-800 mcg daily |