side effect of l carnitine L-Carnitine Benefits, Sources, and Effects Acetyl-L-Carnitine Allergy: Symptoms and Treatment
Description
Adverse effect of superoxide-induced mitochondrial damage in granulosa cells on follicular development in mouse ovaries

Their intelligence is not affected

Weight loss support : By optimizing fat burning for energy, carnitine can contribute to more effective weight management, in addition to a balanced diet and regular exercise program
It also provides extra energy for workouts
