What is the recommended dosage for Acetyl-L-Carnitine?

General: 500-2,000 mg/day; Cognitive Support: 1,500-3,000 mg/day

What are the side effects of Acetyl-L-Carnitine?

Potential side effects include: Gastrointestinal discomfort (nausea, vomiting, diarrhea), Fishy body odor, Restlessness or insomnia, Increased appetite.

What is Acetyl-L-Carnitine?

Acetyl-L-Carnitine (ALCAR) is an acetylated form of the amino acid L-carnitine that crosses the blood-brain barrier more readily than standard L-carnitine. Research suggests it may support mitochondrial energy production in brain cells and has been studied for age-related cognitive concerns.

What dosage of Acetyl-L-Carnitine has been used in studies?

Clinical trials have typically used doses ranging from 500 mg to 3,000 mg per day, often divided into two or three doses. The most common dosage in cognitive studies is 1,500 to 2,000 mg daily. Consult your healthcare provider for personalized dosing guidance.

What are the potential side effects of Acetyl-L-Carnitine?

Reported side effects are generally mild and may include nausea, stomach discomfort, and restlessness. ALCAR may interact with thyroid medications and anticoagulants. Always consult your healthcare provider before use, especially if you have existing medical conditions.

Acetyl-L-Carnitine
Acetyl-L-Carnitine

amino_acid

También conocido como: ALCAR, ALC, Acetylcarnitine, Levacecarnine

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About

Acetyl-L-Carnitine (ALCAR) facilitates fatty acid transport into mitochondria for neuronal energy production and provides acetyl groups for acetylcholine synthesis. Clinical evidence shows mixed results in healthy adults but more consistently positive outcomes in elderly populations with existing cognitive concerns. It is used as a prescription drug in some European countries for cognitive impairment.

How It Works

Facilitates fatty acid transport into mitochondria for neuronal energy production; provides acetyl groups for acetylcholine synthesis; exhibits antioxidant properties protecting neurons from oxidative damage; supports myelin sheath integrity.

Evidence For Conditions

Condición	Calificación	Estudios	Participantes
Age-Related Cognitive Decline	C	14	1000	Ver →
Oxidative Stress & Neuroinflammation	C	8	500	Ver →

Side Effects

Gastrointestinal discomfort (nausea, vomiting, diarrhea)
Fishy body odor
Restlessness or insomnia
Increased appetite

Drug & Supplement Interactions

Anticoagulants (may increase bleeding risk)
Thyroid medications (may enhance thyroid hormone effects)
AZT (antiretroviral — may reduce neuropathy)

Informe siempre a su profesional de salud sobre todos los suplementos que toma.Siempre informe a su profesional de salud sobre todos los suplementos que toma.

Related Ingredients

Taurine L-Theanine N-Acetyl Cysteine

Datos rápidos

Dosificación: General: 500-2,000 mg/day; Cognitive_Support: 1,500-3,000 mg/day
Formas: capsule tablet powder
Fuentes naturales: Red meat, Dairy, Synthesized endogenously from lysine and methionine
Límite superior: Well-tolerated up to 3,000 mg/day
Mejor momento: Morning, on empty stomach or with meals

Resumen de evidencia

Age-Related Cognitive Decline C

Oxidative Stress & Neuroinflammation C

Aviso legal FDA: Estas declaraciones no han sido evaluadas por la Food and Drug Administration. Los productos y la información en este sitio web no están destinados a diagnosticar, tratar, curar ni prevenir ninguna enfermedad. Las calificaciones de evidencia presentadas se basan en nuestro análisis de investigación publicada revisada por pares y no constituyen consejo médico. Siempre consulte a su profesional de salud antes de comenzar cualquier régimen de suplementos.