l carnitine marathon running Elite Runners Reveal Strategies Used to Beat the Heat 5 to enhance your body’s ability to use stored fat for fuel L-carnitine: The Endurance Sports Nutrient
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Yaci R, Aydin B, Erdurmu M, Karada R, Grel A, Durmu M, et al

Patients with Duchenne dystrophy and Becker dystrophy showed lower carnitine levels in muscle biopsies than controls [131] though these levels were higher than in patients suffering primary carnitine deficiency as a result of severe muscle damage [1]

Supports cognitive function evidence suggests L-carnitine may enhance concentration and memory, particularly in older adults or during mental stress
Methods: We conducted a retrospective analysis of follow-up clinical data (CFS N=12

Unfortunately, this means vegans and vegetarians are often carnitine deficient

Tau seeding, also present in AD (123, 311, 372376), has been reported in the brains of MS patients (140) and this tau deposition may produce demyelination through injury to oligodendrocytes (128)
