l carnitine athletic performance L-CARNITINE L Carnitine 3500 – Metabolic
Description
In cases where clinical suspicion remains high despite normal B12 levels, additional testing with methylmalonic acid (MMA) or homocysteine levels may be helpful, though availability is limited in the UK and results can be affected by renal function
Bioact Mater 6(2):375385
A doctor should also review unexplained high B12 levels, particularly when a person is not taking supplements or injections
Am J Physiol Cell Physiol 298:C407429 Rizzo MA, Fisher M, Lock JP (1993) Hypermagnesemic pseudocoma
Cuijpers, L.J
