l carnitine brain fog Can Acetyl-L-Carnitine Help Clear and Fatigue in Long COVID and ME/CFS? Acetyl L-Carnitine
Description
Researchers also find that acylcarnitine levels are low and variants in the CPT1B gene add to susceptibility to narcolepsy.[ref] Alzheimers : Clinical trials on L-carnitine or acetyl-L-carnitine supplementation for Alzheimers or mild cognitive impairment have mixed results

Your body can synthesise it in the liver and kidneys, and you also get it from food (especially red meat and dairy) and supplements

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Hanna R, Rozenberg A, Saied L, Ben-Yosef D, Lavy T, Kleifeld O, et al
