Bilirubin in Athletes: Causes, Gilbert’s Syndrome, and Exercise-Induced Hemolysis
Introduction Bilirubin in athletes is observed more frequently than in the general population. In my clinical practice, isolated mild elevations…
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Haptoglobin in Athletes: The Hemolysis Detection Marker
Introduction Some of my patients may have heard of the protein haptoglobin, but it remains relatively unfamiliar—and even when recognized,…
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Vitamin B12 and Folate in Athletes: Beyond Anemia Prevention
Introduction In my experience, athletic patients are often well-informed about nutrition and vitamins. They are typically interested in tracking their…
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Preparing for Blood Test Athletes: Fasting, Timing, and Training Considerations
Introduction Many of my athletic patients follow highly structured training programs. Their routines often include near-daily workouts, carefully planned nutrition,…
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Reticulocyte Count in Athletes: Understanding Your Bone Marrow Response
Introduction In my practice, most athletes focus on hemoglobin and ferritin, with fewer paying attention to hematocrit. These markers are…
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Hepcidin and Iron Absorption in Athletes: Why Timing Your Iron Supplement Matters
Introduction Iron deficiency is one of the most prevalent nutritional problems in sport — yet many of my patients who…
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Blood Volume Expansion in Athletes: Dilutional Pseudoanemia (Sports Anemia) Explained
Introduction When I see athletic patients, they are often highly aware of anemia and iron deficiency, and may become concerned…
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IV Iron for Athletes: When Infusion Makes Sense
Introduction Iron deficiency is common in athletic populations, with higher rates observed in female athletes and endurance disciplines. It can…
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Lactate Testing for Athletes: Beyond Blood Lactate Threshold
Introduction: Lactate Testing for Athletes A sensation familiar to almost everyone is the buildup of “lactic acid” in the muscles….
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RED-S Blood Work and The Female Athlete Triad: A Screening Guide for Coaches and Clinicians
Introduction Some of my patients are female athletes who naturally train at a high level. In many sports, there are…
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Thyroid Function in Athletes: Why TSH Alone Isn’t Enough
Introduction: Thyroid Function in Athletes Athletes often come to my clinic due to slowed or stalled progress, fatigue, and lack…
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Post-Marathon Blood Work: Understanding Your Blood Test After a Marathon and When Results Return to Normal
Introduction: Why Post-Marathon Blood Work Can Be Misleading Many of my athletic patients are interested in blood tests. They tend…
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Serum Iron vs Ferritin: Which Test Actually Matters for Athletes?
Introduction Patients often ask me about their iron levels. Most are familiar with ferritin, as it has become something of…
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Which Blood Tests Do Athletes Actually Need? A Doctor’s Evidence-Based Guide
Introduction: Which Blood Tests Do Athletes Actually Need It’s completely understandable that athletes want to maximize their performance. That’s only…
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Resting Heart Rate Changes in Overtrained Athletes: What Your Morning Pulse Is (and Isn’t) Telling You
Introduction: Resting Heart Rate Changes in Overtrained Athletes In clinical practice, I often see disruptions in heart rate regulation in…
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Soluble Transferrin Receptor in Athletes: sTfR as The Advanced Iron Marker
Introduction: When Your Iron Test Doesn’t Tell the Whole Story Interpreting iron status in athletic patients is often more complex…
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HRV and Blood Work: Connecting the Dots
Introduction: HRV and Blood Work Most athletes monitoring their health are doing it in silos. They review a blood panel…
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RBC Count in Endurance Athletes: What Your Blood Test Is Actually Telling You
Introduction In my physically active patients, one of the most important basic laboratory tests is the basic or complete blood…
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Inflammation Markers in Athletes: CRP and Recovery
Introduction: Inflammation Markers in Athletes C-reactive protein (CRP) is the most widely measured inflammatory marker in clinical practice, yet its…
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Hematocrit in Athletes: What Your Blood Really Tells You About Performance
Introduction: Hematocrit in Athletes Hematocrit in athletes is a parameter included in both basic and extended blood counts. It has…
