l carnitine gives me diarrhea Impact of L-carnitine supplementation on gastric emptying and bowel function in pediatric ketogenic diet therapy: a clinical trial L-Carnitine Side Effects & Safety:

found that individuals with cocaine use disorder with elevated habitual scores exhibited reduced Glu in the putamen using the same contingency degradation test paradigm and the same 7T scanner with similar sequence parameters 31

Impact of bacterial metabolites on gut barrier function and host immunity: a focus on bacterial metabolism and its relevance for intestinal inflammation

Juanpablo - it could still be worth finding out what your current B12 reading is , if you can find a medical professional who understands that it should by now be very high

It provides conclusive evidence that oxidative stress is intimately involved in aging