interestingly, Okui et al
Metabolic flexibilitythe ability to switch efficiently between carbohydrate and fat oxidationis arguably the most important metabolic attribute for ultra-distance performance
doi:10.1016/j.obpill.2025.100181 Fitch A, Gigliotti L, Bays HE
If you can keep oral medication down, oral Zofran works
Mol Immunol 42:9871014, PMID: 15829290 Valko M, Leibfritz D, Moncol J, Cronin MT, Mazur M, Telser J (2007) Free radicals and antioxidants in normal physiological functions and human disease
This framework highlights key differences to help inform provider selection