inositol and l carnitine together FAYNMED Faynwomen Women's Vitamin Myo-Inositol, L-Carnitine, Resveratrol, Coenzyme Q10 Multivitamin Myo-inositol, D-chiro Inositol, Co-enzyme Q10,
Description
Short answer: they're not competing

In the last 20 years, there was increasing evidence of vitamin B12 deficiency among metformin-treated diabetic patients[10,11]

doi: 10.1182/blood-2005-03-1257 148 RezvaniKMielkeSAhmadzadehMKilicalYSavaniBNZeilahJet al

10.3390/ijms19040986 12 DieboldL.ChandelN