In addition to producing energy, these two nutrients remove toxic accumulations of fatty acids from mitochondria, keeping these organelles healthy and functioning at their best. Energy production in mitochondria is not a perfect process and toxic metabolites do accumulate. Accumulation of these toxic metabolites and the resulting oxidative damage is likely to contribute to aging of cells. A waste substance called lipofuscin accumulates in cells as we age and perhaps adequate acetyl-l carnitine intake can help minimize this accumulation. A study in rats providing acetyl-l carnitine from youth showed this nutrient to decrease lipofuscin levels in their brain as they got old. Therefore, it is theoretically possible that supplementation with carnitine or acetyl-l-carnitine can slow the aging process.
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