Structurally, the difference between the acetyl-L-carnitine (ALC) and L-carnitine (LC) is that ALC is an LC molecule that also contains an attached acetic acid group. This structural difference is small, but it produces a considerable difference in the biochemical properties of the molecule and, consequently, in its effects on metabolism.
What are mitochondria, what are their functions and why are they so important? These tiny cellular structures specialize in energy production, but also play a role in aging, cancer, cell death, and degenerative diseases. Virtually all the energy needed for you to go about your daily life ultimately derives from the mitochondria.