l carnitine comes from Deficiency: What Is It, Causes, Symptoms, and More Creatine & Acetyl-L-Carnitine Energy Plus,

However, if consumed in excess, you may experience minor digestive discomfort like bloating or an upset stomach

In one experiment, obese Zucker rats lost around 50% of their weight in 19 days, with the researchers noting 23% increased lipolytic activity, measured as glycerol release from the fatty tissue of the treated animals [20]

This excitotoxicity not only deepens cognitive impairment but also contributes to the severe sensory overload and post-exertional malaise (PEM) that define ME/CFS crashes

Some describe a mild warm sensation or a faint metallic taste in their mouth thats normal and passes quickly

Martinez B, Peplow PV

Annu Rev Pharmacol Toxicol 53: 401-426