Arginine is the precursor for nitric oxide synthesis. Nitric oxide can be oxidized to form nitrite. Higher arginine availability may increase nitric oxide production and nitrite levels.
References
Thiago Silveira Alvares, Carlos Adam Conte-Junior, Joab Trajano Silva, Vânia Margaret Flosi Paschoalin. Acute L-Arginine supplementation does not increase nitric oxide production in healthy subjects. Nutrition & Metabolism (2012). https://nutritionandmetabolism.biomedcentral.com/articles/10.1186/1743-7075-9-54AK Kiani, G Bonetti, MC Medori, P Caruso, P Manganotti, F Fioretti, S Nodari, ST Connelly, M Bertelli. Dietary supplements for improving nitric-oxide synthesis. Journal Preventive Medicine and Hygiene (2022). https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9710401/
ADMA is an endogenous inhibitor of nitric oxide synthase. Higher ADMA levels can suppress nitric oxide production from arginine, potentially leading to reduced nitrite levels.
Ornithine and citrulline can be interconverted in the urea cycle. Changes in ornithine levels may impact citrulline and downstream nitric oxide and nitrite production.