About Acetyl-L-Carnitine
Acetyl-L-Carnitine (ALCAR) is a synthetic derivative of L-Carnitine, modified with an acetyl group to improve its bioavailability and ability to cross the blood-brain barrier. It is used as a dietary supplement for its potential benefits related to cognitive function, neuroprotection, mood enhancement, energy support, and peripheral neuropathy relief. While generally safe, potential side effects include gastrointestinal issues, restlessness, and, rarely, fishy body odor. More research is needed to fully elucidate its mechanisms of action and long-term effects.
Key Information
Compare All Forms
Compare different forms of Acetyl-L-Carnitine by bioavailability, conversion rates, and active ingredient content:
| Form | Tier | Steps |
Acetyl-L-Carnitine (mg) |
Bioavailability | Action |
|---|---|---|---|---|---|
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Acetyl-L-Carnitine (ALCAR)
Acetyl-L-Carnitine (ALCAR) enhances cognitive function and e... |
Tier 3 | 3 | — | Basic/low bioavailability form. Cheap raw material with poor absorption or high GI distress. Often poorly utilized by the body, requires 3+ conversion steps. | View → |
Scientific Evidence
Studies on cognitive function in elderly individuals, research on neuroprotective properties in animal models of neurodegenerative diseases, clinical trials on peripheral neuropathy, and investigations into mitochondrial function and energy metabolism.