The impact of Ramadan fasting on hematopoiesis, hematological inflammatory parameters, and metabolic processes among athletes

Authors

  • Ali Abdelfattah Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, The Hashemite University, Zarqa 13133, Jordan https://orcid.org/0000-0003-0294-0568
  • Ayed Zureigat School of Sports Science, The University of Jordan, Amman, Jordan
  • Ghazi El Kailani School of Sports Science, The University of Jordan, Amman, Jordan
  • Mersal Mersal Department of Physical Education -Training, An-Najah University, Palestine
  • Omar Abuyaman Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, The Hashemite University, Zarqa 13133, Jordan https://orcid.org/0000-0002-7694-7941
  • Raed Halalsheh Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, The Hashemite University, Zarqa 13133, Jordan
  • Sarah Al-Aqrabawi Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, The Hashemite University, Zarqa 13133, Jordan https://orcid.org/0009-0003-8682-4894
  • Osama Abdel Fattah School of Sports Science, The University of Jordan, Amman, Jordan https://orcid.org/0000-0003-4545-5562

DOI:

https://doi.org/10.47197/retos.v66.112588

Keywords:

Hematological inflammatory parameters, hematopoiesis, metabolic processes, sports nutrition, sports physiology

Abstract

Introduction: Muslim athletes fast from dawn to sunset during the month of Ramadan, prompting research into how this fasting affects their physiology and performance.

Objective: This study aimed to evaluate the impact of Ramadan fasting on anthropometric parameters, hematological and inflammatory markers, and metabolic processes in a cohort of athletes, given the inconsistent findings from previous studies and limited focus on immune system effects.

Methodology: This research was conducted on 15 fasted Jordanian national players who maintained their regular training sessions. Anthropometry, blood elements, inflammatory parameters, lipid profiles, and kidney functions were measured the day before and the day after Ramadan fasting.

Results: Analyses showed that weight, body fat mass, neutrophils, hematological inflammatory parameters, cholesterol, triglyceride, and low-density lipoprotein were significantly lower after Ramadan fasting; body mass index, body fat percentage, lean body mass, and blood volume displayed a trend of reduction, while lymphocytes were significantly higher. There were no changes in erythrocyte indices and kidney function tests.

Conclusion: These findings indicate that Ramadan fasting leads to weight loss, improved cardiovascular health, and modification in immune response dynamics in athletes. Further studies are required to elucidate the mechanisms underlying these effects.

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Published

10-03-2025

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Original Research Article

How to Cite

Abdelfattah, A., Zureigat, A., El Kailani, G., Mersal, M., Abuyaman, O., Halalsheh, R., Al-Aqrabawi, S., & Abdel Fattah, O. (2025). The impact of Ramadan fasting on hematopoiesis, hematological inflammatory parameters, and metabolic processes among athletes. Retos, 66, 754-765. https://doi.org/10.47197/retos.v66.112588