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Introduction: Ramadan intermittent fasting is observed by Muslims from sunrise to sunset and alternated with moments of re-feeding. The aims of this study were to assess the impact of Ramadan fasting on rheumatoid arthritis (RA) and spondyloarthritis (SpA) activity and to assess its impact on chronic medications intake in patients with rheumatic diseases. Methods: This prospective monocentric study included patients with RA or SpA who fasted during Ramadan of 2019. The disease activity and the managing of chronic medications were assessed and compared between two visits: the first one 6 months before starting Ramadan fasting and the second after fasting at least 7 days. Results: Fifty-six patients were included: 36 with RA (average age 57.5 ± 10.9 years) and 20 with SpA (average age 47 ± 12.6 years). In the RA group, the Disease Activity Scores (DAS) 28 ESR, and DAS 28 CRP decreased after fasting respectively from 4.3 ± 1.3 to 3.5 ± 1.4 (p < 0.001) and from 3.4 ± 1.2 to 2.9 ± 1.3 (p = 0.001). In the SpA group, Ankylosing Spondylitis Disease Activity Scores (ASDAS) ESR and ASDAS CRP decreased respectively from 2.3 ± 0.5 to 1.9 ± 0.7 (p = 0.039) and from 1.9 ± 0.5 to 1.8 ± 0.8 (p = 0.388). Fasting did not affect significantly either compliance with chronic medications or tolerance. Conclusions: Fasting can be a possible way to induce rapid improvement of rheumatic diseases activity. In addition, patients with a specific fear of drug intake during this period can be reassured, which will enhance the adherence to treatment. Key Points • Fasting during Ramadan, the ninth month of the Islamic calendar, consists of intermittent fasting observed from sunrise to sunset. • In this set of patients, beneficial effects of intermittent fasting were demonstrated on RA activity, but were less evident in patients with SpA despite a general trend towards improvement. • Fasting did not affect significantly either compliance with chronic medications or tolerance. [ABSTRACT FROM AUTHOR]

Ramadan, the ninth month of the Muslim lunar calendar, is a period of intermittent fasting alternated with moments of refeeding. The last decades have seen a growing number of reports that examine the potential effect of Ramadan intermittent fasting (RIF) on chronic musculoskeletal disorders. In this paper, we reviewed data that assessed the relationship of intermittent diurnal fasting during Ramadan with rheumatic diseases. Currently, recent evidence indicates that RIF may attenuate the inflammatory state by suppressing pro-inflammatory cytokine expression and reducing the body fat and the circulating levels of leukocytes. Therefore, it may be a promising non-pharmacological approach for managing the course of rheumatic inflammatory diseases. Despite differences between studies in daily fasting duration and dietary norms, there appears to be a consensus that most of the patients with rheumatoid arthritis (RA) or spondyloarthritis (SpA) who fasted Ramadan experienced relief of their symptoms. Nevertheless, further clinical trials are required to assess the effect of RIF on other musculoskeletal and bone disorders. Additionally, we evaluated the impact of RIF on chronic medication intake. Even if a few studies on this issue are available, the primary outcomes indicate that RIF does not significantly impair either compliance or tolerance to chronic medications. These findings may give some reassurance to patients with a specific fear of drug intake during this month.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Ramadan, the ninth month of the Muslim lunar calendar, is a period of intermittent fasting alternated with moments of refeeding. The last decades have seen a growing number of reports that examine the potential effect of Ramadan intermittent fasting (RIF) on chronic musculoskeletal disorders. In this paper, we reviewed data that assessed the relationship of intermittent diurnal fasting during Ramadan with rheumatic diseases. Currently, recent evidence indicates that RIF may attenuate the inflammatory state by suppressing pro-inflammatory cytokine expression and reducing the body fat and the circulating levels of leukocytes. Therefore, it may be a promising non-pharmacological approach for managing the course of rheumatic inflammatory diseases. Despite differences between studies in daily fasting duration and dietary norms, there appears to be a consensus that most of the patients with rheumatoid arthritis (RA) or spondyloarthritis (SpA) who fasted Ramadan experienced relief of their symptoms. Nevertheless, further clinical trials are required to assess the effect of RIF on other musculoskeletal and bone disorders. Additionally, we evaluated the impact of RIF on chronic medication intake. Even if a few studies on this issue are available, the primary outcomes indicate that RIF does not significantly impair either compliance or tolerance to chronic medications. These findings may give some reassurance to patients with a specific fear of drug intake during this month.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Ramadan, the ninth month of the Muslim lunar calendar, is a period of intermittent fasting alternated with moments of refeeding. The last decades have seen a growing number of reports that examine the potential effect of Ramadan intermittent fasting (RIF) on chronic musculoskeletal disorders. In this paper, we reviewed data that assessed the relationship of intermittent diurnal fasting during Ramadan with rheumatic diseases. Currently, recent evidence indicates that RIF may attenuate the inflammatory state by suppressing pro-inflammatory cytokine expression and reducing the body fat and the circulating levels of leukocytes. Therefore, it may be a promising non-pharmacological approach for managing the course of rheumatic inflammatory diseases. Despite differences between studies in daily fasting duration and dietary norms, there appears to be a consensus that most of the patients with rheumatoid arthritis (RA) or spondyloarthritis (SpA) who fasted Ramadan experienced relief of their symptoms. Nevertheless, further clinical trials are required to assess the effect of RIF on other musculoskeletal and bone disorders. Additionally, we evaluated the impact of RIF on chronic medication intake. Even if a few studies on this issue are available, the primary outcomes indicate that RIF does not significantly impair either compliance or tolerance to chronic medications. These findings may give some reassurance to patients with a specific fear of drug intake during this month.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Ramadan, the ninth month of the Muslim lunar calendar, is a period of intermittent fasting alternated with moments of refeeding. The last decades have seen a growing number of reports that examine the potential effect of Ramadan intermittent fasting (RIF) on chronic musculoskeletal disorders. In this paper, we reviewed data that assessed the relationship of intermittent diurnal fasting during Ramadan with rheumatic diseases. Currently, recent evidence indicates that RIF may attenuate the inflammatory state by suppressing pro-inflammatory cytokine expression and reducing the body fat and the circulating levels of leukocytes. Therefore, it may be a promising non-pharmacological approach for managing the course of rheumatic inflammatory diseases. Despite differences between studies in daily fasting duration and dietary norms, there appears to be a consensus that most of the patients with rheumatoid arthritis (RA) or spondyloarthritis (SpA) who fasted Ramadan experienced relief of their symptoms. Nevertheless, further clinical trials are required to assess the effect of RIF on other musculoskeletal and bone disorders. Additionally, we evaluated the impact of RIF on chronic medication intake. Even if a few studies on this issue are available, the primary outcomes indicate that RIF does not significantly impair either compliance or tolerance to chronic medications. These findings may give some reassurance to patients with a specific fear of drug intake during this month.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Ramadan, the ninth month of the Muslim lunar calendar, is a period of intermittent fasting alternated with moments of refeeding. The last decades have seen a growing number of reports that examine the potential effect of Ramadan intermittent fasting (RIF) on chronic musculoskeletal disorders. In this paper, we reviewed data that assessed the relationship of intermittent diurnal fasting during Ramadan with rheumatic diseases. Currently, recent evidence indicates that RIF may attenuate the inflammatory state by suppressing pro-inflammatory cytokine expression and reducing the body fat and the circulating levels of leukocytes. Therefore, it may be a promising non-pharmacological approach for managing the course of rheumatic inflammatory diseases. Despite differences between studies in daily fasting duration and dietary norms, there appears to be a consensus that most of the patients with rheumatoid arthritis (RA) or spondyloarthritis (SpA) who fasted Ramadan experienced relief of their symptoms. Nevertheless, further clinical trials are required to assess the effect of RIF on other musculoskeletal and bone disorders. Additionally, we evaluated the impact of RIF on chronic medication intake. Even if a few studies on this issue are available, the primary outcomes indicate that RIF does not significantly impair either compliance or tolerance to chronic medications. These findings may give some reassurance to patients with a specific fear of drug intake during this month.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Ramadan, the ninth month of the Muslim lunar calendar, is a period of intermittent fasting alternated with moments of refeeding. The last decades have seen a growing number of reports that examine the potential effect of Ramadan intermittent fasting (RIF) on chronic musculoskeletal disorders. In this paper, we reviewed data that assessed the relationship of intermittent diurnal fasting during Ramadan with rheumatic diseases. Currently, recent evidence indicates that RIF may attenuate the inflammatory state by suppressing pro-inflammatory cytokine expression and reducing the body fat and the circulating levels of leukocytes. Therefore, it may be a promising non-pharmacological approach for managing the course of rheumatic inflammatory diseases. Despite differences between studies in daily fasting duration and dietary norms, there appears to be a consensus that most of the patients with rheumatoid arthritis (RA) or spondyloarthritis (SpA) who fasted Ramadan experienced relief of their symptoms. Nevertheless, further clinical trials are required to assess the effect of RIF on other musculoskeletal and bone disorders. Additionally, we evaluated the impact of RIF on chronic medication intake. Even if a few studies on this issue are available, the primary outcomes indicate that RIF does not significantly impair either compliance or tolerance to chronic medications. These findings may give some reassurance to patients with a specific fear of drug intake during this month.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Ramadan, the ninth month of the Muslim lunar calendar, is a period of intermittent fasting alternated with moments of refeeding. The last decades have seen a growing number of reports that examine the potential effect of Ramadan intermittent fasting (RIF) on chronic musculoskeletal disorders. In this paper, we reviewed data that assessed the relationship of intermittent diurnal fasting during Ramadan with rheumatic diseases. Currently, recent evidence indicates that RIF may attenuate the inflammatory state by suppressing pro-inflammatory cytokine expression and reducing the body fat and the circulating levels of leukocytes. Therefore, it may be a promising non-pharmacological approach for managing the course of rheumatic inflammatory diseases. Despite differences between studies in daily fasting duration and dietary norms, there appears to be a consensus that most of the patients with rheumatoid arthritis (RA) or spondyloarthritis (SpA) who fasted Ramadan experienced relief of their symptoms. Nevertheless, further clinical trials are required to assess the effect of RIF on other musculoskeletal and bone disorders. Additionally, we evaluated the impact of RIF on chronic medication intake. Even if a few studies on this issue are available, the primary outcomes indicate that RIF does not significantly impair either compliance or tolerance to chronic medications. These findings may give some reassurance to patients with a specific fear of drug intake during this month.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Ramadan, the ninth month of the Muslim lunar calendar, is a period of intermittent fasting alternated with moments of refeeding. The last decades have seen a growing number of reports that examine the potential effect of Ramadan intermittent fasting (RIF) on chronic musculoskeletal disorders. In this paper, we reviewed data that assessed the relationship of intermittent diurnal fasting during Ramadan with rheumatic diseases. Currently, recent evidence indicates that RIF may attenuate the inflammatory state by suppressing pro-inflammatory cytokine expression and reducing the body fat and the circulating levels of leukocytes. Therefore, it may be a promising non-pharmacological approach for managing the course of rheumatic inflammatory diseases. Despite differences between studies in daily fasting duration and dietary norms, there appears to be a consensus that most of the patients with rheumatoid arthritis (RA) or spondyloarthritis (SpA) who fasted Ramadan experienced relief of their symptoms. Nevertheless, further clinical trials are required to assess the effect of RIF on other musculoskeletal and bone disorders. Additionally, we evaluated the impact of RIF on chronic medication intake. Even if a few studies on this issue are available, the primary outcomes indicate that RIF does not significantly impair either compliance or tolerance to chronic medications. These findings may give some reassurance to patients with a specific fear of drug intake during this month.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Ramadan, the ninth month of the Muslim lunar calendar, is a period of intermittent fasting alternated with moments of refeeding. The last decades have seen a growing number of reports that examine the potential effect of Ramadan intermittent fasting (RIF) on chronic musculoskeletal disorders. In this paper, we reviewed data that assessed the relationship of intermittent diurnal fasting during Ramadan with rheumatic diseases. Currently, recent evidence indicates that RIF may attenuate the inflammatory state by suppressing pro-inflammatory cytokine expression and reducing the body fat and the circulating levels of leukocytes. Therefore, it may be a promising non-pharmacological approach for managing the course of rheumatic inflammatory diseases. Despite differences between studies in daily fasting duration and dietary norms, there appears to be a consensus that most of the patients with rheumatoid arthritis (RA) or spondyloarthritis (SpA) who fasted Ramadan experienced relief of their symptoms. Nevertheless, further clinical trials are required to assess the effect of RIF on other musculoskeletal and bone disorders. Additionally, we evaluated the impact of RIF on chronic medication intake. Even if a few studies on this issue are available, the primary outcomes indicate that RIF does not significantly impair either compliance or tolerance to chronic medications. These findings may give some reassurance to patients with a specific fear of drug intake during this month.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Ramadan, the ninth month of the Muslim lunar calendar, is a period of intermittent fasting alternated with moments of refeeding. The last decades have seen a growing number of reports that examine the potential effect of Ramadan intermittent fasting (RIF) on chronic musculoskeletal disorders. In this paper, we reviewed data that assessed the relationship of intermittent diurnal fasting during Ramadan with rheumatic diseases. Currently, recent evidence indicates that RIF may attenuate the inflammatory state by suppressing pro-inflammatory cytokine expression and reducing the body fat and the circulating levels of leukocytes. Therefore, it may be a promising non-pharmacological approach for managing the course of rheumatic inflammatory diseases. Despite differences between studies in daily fasting duration and dietary norms, there appears to be a consensus that most of the patients with rheumatoid arthritis (RA) or spondyloarthritis (SpA) who fasted Ramadan experienced relief of their symptoms. Nevertheless, further clinical trials are required to assess the effect of RIF on other musculoskeletal and bone disorders. Additionally, we evaluated the impact of RIF on chronic medication intake. Even if a few studies on this issue are available, the primary outcomes indicate that RIF does not significantly impair either compliance or tolerance to chronic medications. These findings may give some reassurance to patients with a specific fear of drug intake during this month.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Ramadan, the ninth month of the Muslim lunar calendar, is a period of intermittent fasting alternated with moments of refeeding. The last decades have seen a growing number of reports that examine the potential effect of Ramadan intermittent fasting (RIF) on chronic musculoskeletal disorders. In this paper, we reviewed data that assessed the relationship of intermittent diurnal fasting during Ramadan with rheumatic diseases. Currently, recent evidence indicates that RIF may attenuate the inflammatory state by suppressing pro-inflammatory cytokine expression and reducing the body fat and the circulating levels of leukocytes. Therefore, it may be a promising non-pharmacological approach for managing the course of rheumatic inflammatory diseases. Despite differences between studies in daily fasting duration and dietary norms, there appears to be a consensus that most of the patients with rheumatoid arthritis (RA) or spondyloarthritis (SpA) who fasted Ramadan experienced relief of their symptoms. Nevertheless, further clinical trials are required to assess the effect of RIF on other musculoskeletal and bone disorders. Additionally, we evaluated the impact of RIF on chronic medication intake. Even if a few studies on this issue are available, the primary outcomes indicate that RIF does not significantly impair either compliance or tolerance to chronic medications. These findings may give some reassurance to patients with a specific fear of drug intake during this month.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Ramadan, the ninth month of the Muslim lunar calendar, is a period of intermittent fasting alternated with moments of refeeding. The last decades have seen a growing number of reports that examine the potential effect of Ramadan intermittent fasting (RIF) on chronic musculoskeletal disorders. In this paper, we reviewed data that assessed the relationship of intermittent diurnal fasting during Ramadan with rheumatic diseases. Currently, recent evidence indicates that RIF may attenuate the inflammatory state by suppressing pro-inflammatory cytokine expression and reducing the body fat and the circulating levels of leukocytes. Therefore, it may be a promising non-pharmacological approach for managing the course of rheumatic inflammatory diseases. Despite differences between studies in daily fasting duration and dietary norms, there appears to be a consensus that most of the patients with rheumatoid arthritis (RA) or spondyloarthritis (SpA) who fasted Ramadan experienced relief of their symptoms. Nevertheless, further clinical trials are required to assess the effect of RIF on other musculoskeletal and bone disorders. Additionally, we evaluated the impact of RIF on chronic medication intake. Even if a few studies on this issue are available, the primary outcomes indicate that RIF does not significantly impair either compliance or tolerance to chronic medications. These findings may give some reassurance to patients with a specific fear of drug intake during this month.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Ramadan, the ninth month of the Muslim lunar calendar, is a period of intermittent fasting alternated with moments of refeeding. The last decades have seen a growing number of reports that examine the potential effect of Ramadan intermittent fasting (RIF) on chronic musculoskeletal disorders. In this paper, we reviewed data that assessed the relationship of intermittent diurnal fasting during Ramadan with rheumatic diseases. Currently, recent evidence indicates that RIF may attenuate the inflammatory state by suppressing pro-inflammatory cytokine expression and reducing the body fat and the circulating levels of leukocytes. Therefore, it may be a promising non-pharmacological approach for managing the course of rheumatic inflammatory diseases. Despite differences between studies in daily fasting duration and dietary norms, there appears to be a consensus that most of the patients with rheumatoid arthritis (RA) or spondyloarthritis (SpA) who fasted Ramadan experienced relief of their symptoms. Nevertheless, further clinical trials are required to assess the effect of RIF on other musculoskeletal and bone disorders. Additionally, we evaluated the impact of RIF on chronic medication intake. Even if a few studies on this issue are available, the primary outcomes indicate that RIF does not significantly impair either compliance or tolerance to chronic medications. These findings may give some reassurance to patients with a specific fear of drug intake during this month.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis.Key Points• Intermittent diurnal fasting during Ramadan can modulate the inflammatory status through the down-regulation of metabolic syndrome, the reduction of pro-inflammatory cytokines, and the reduction of circulating levels of leukocytes• Ramadan intermittent fasting (RIF) can effectively improve the activity of rheumatic inflammatory diseases.• Although further studies are still required, there seems no harm for patients with gout to participate in RIF.• Primary outcomes indicate that RIF may be a promising non-pharmacological intervention for the management of patients with osteoarthritis and osteoporosis. [ABSTRACT FROM AUTHOR]