Journal
NUTRIENTS
Volume 13, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/nu13020503
Keywords
post-viral fatigue syndrome; chronic fatigue syndrome; creatine; GAA; creatine kinase
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Post-viral fatigue syndrome (PVFS) is a chronic neurological disease with no definite etiological factor(s) or diagnostic test. Research suggests that irregularities in creatine metabolism may be a feature of PVFS, and supplementing creatine and related compounds could potentially improve fatigue symptoms in patients.
Post-viral fatigue syndrome (PVFS) is a widespread chronic neurological disease with no definite etiological factor(s), no actual diagnostic test, and no approved pharmacological treatment, therapy, or cure. Among other features, PVFS could be accompanied by various irregularities in creatine metabolism, perturbing either tissue levels of creatine in the brain, the rates of phosphocreatine resynthesis in the skeletal muscle, or the concentrations of the enzyme creatine kinase in the blood. Furthermore, supplemental creatine and related guanidino compounds appear to impact both patient- and clinician-reported outcomes in syndromes and maladies with chronic fatigue. This paper critically overviews the most common disturbances in creatine metabolism in various PVFS populations, summarizes human trials on dietary creatine and creatine analogs in the syndrome, and discusses new frontiers and open questions for using creatine in a post-COVID-19 world.
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