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| Attribute | Metabolic (non-peptide) L-Carnitine (injectable) |
|---|---|
| Summary | Mitochondrial fat-shuttle cofactor — used for endurance support and recomposition protocols. |
| Mechanism | Shuttles long-chain fatty acids across the inner mitochondrial membrane for β-oxidation. Injectable form bypasses oral absorption ceiling. |
| Top outcomes |
|
| Evidence | established |
| Half-life | ~15 hours |
| Administration | im, iv |
| Legal status | rx only |
| Safety | Generally safe. High doses can cause fishy body odor (TMAO production) and mild GI upset. |