Acetyl-L-Carnitine (ALCAR)
The acetylated form of L-carnitine that readily crosses the blood-brain barrier, studied for neuroprotection, cognitive function enhancement, and depression in older adults.
Known Health Benefits
Active Compounds
Acetyl-L-carnitine
Dosage Guidance
500–2000 mg daily (take morning)
Always consult a healthcare provider for personalized dosing.
Potential Side Effects
Restlessness, insomnia if taken late; GI upset; fishy body odor
Known Drug Interactions
May interact with blood thinners and thyroid medications
Evidence Classification
Supported by cohort studies, case-control studies, or multiple observational studies with consistent findings.
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This entry is for educational purposes only. It is not medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement regimen, especially if you take medications or have health conditions.