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Hematocrit is a measure of the percentage of red blood cells in the blood. Low hematocrit levels (anemia) can cause fatigue, shortness of breath, and other symptoms.

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iollo markers that associate with Hematocrit

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Alanine

Alanine is involved in the synthesis of heme, a key component of hemoglobin in red blood cells. Changes in alanine levels may therefore correlate with hematocrit, a measure of red blood cell volume.
Liu, Y., et al.. Serum alanine aminotransferase is correlated with … - PubMed literature. PubMed (2012). https://pubmed.ncbi.nlm.nih.gov/22486855/Shen, X., et al.. Serum Alanine Aminotransferase Levels, Hematocrit Rate and Body … ScienceDirect (2022). https://www.sciencedirect.com/science/article/pii/S1807593222025340Liu, Y., et al.. Serum alanine aminotransferase is correlated with hematocrit in … - NCBI. NCBI (2014). https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4213065/Liu, Y., et al.. Serum alanine aminotransferase is correlated with hematocrit in … Taylor & Francis Online (2011). https://www.tandfonline.com/doi/pdf/10.3109/00365513.2012.660536

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Glycine

Glycine is another amino acid involved in heme biosynthesis. Alterations in glycine availability could potentially impact hemoglobin production and thus hematocrit levels.
Stachlewitz RF, et al.. “Glycine reduces platelet aggregation - PMC - NCBI”. Cardiovasc Res. (1995). https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4167623/Bunn HF, et al.. “Extracellular glycine is necessary for optimal hemoglobinization … - NCBI”. Blood (2017). https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5541866/
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