Q

What is the oral bioavailability of acetyl-L-carnitine compared to L-carnitine?

From 5 years of verified research · Vassili Sandqvist
A

Acetyl-L-carnitine has an oral bioavailability of approximately 14–20%, while L-carnitine's bioavailability ranges from 54–87%. However, L-carnitine undergoes significant gut microbiota metabolism, which can lead to cardiovascular risks.

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