does aceytl l carnitine constipate Acetyl L-Carnitine 500 mg Supplement Acetyl-L-carnitine in chronic pain: A
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doi: 10.1055/s-2007-973761

Lancet 12-13-1980;2(8207):1309-1310

doi:10.1055/a-0658-7889

Therefore, it appears that long-term supplementation is a required before effects become apparent
