Abstract Background The main aim of the present study is to determine the role of metabolites observed using proton magnetic resonance spectroscopy (1H-MRS) in obsessive-compulsive disorder (OCD). As the literature describing biochemical changes in OCD yields conflicting results. we focused on accurate metabolite quantification of total N-acetyl aspartate (tNAA). total creatine (tCr). https://herbsdailyes.shop/product-category/medical-and-ambulatory-supplies-respiratory/