acetyl l carnitine ammonia Acetyl-L-carnitine physical-chemical, metabolic, and therapeutic properties: relevance for its mode of action in Alzheimer's disease and geriatric depression Carnitine - Wikipedia
Description
This l carnitine supplement is an essential chemical found in the mitochondriathe cells' energy centerswhere it helps break down long-chain fatty acids and promotes oxygen consumption
However, these contain significantly lower levels, making supplementation necessary for strict vegetarians or vegans

The only significant between-group difference in cognitive function observed in this study regarded executive function, i.e

EMBO Reports, 10(12), 13201326
