🔥 Amino acids · Moderate evidence
L-Carnitine
Fat burning · energy · heart · brain · fertility. People take it for:
- Fat metabolism and weight management
- Energy production
- Athletic endurance
- Heart health
- Male fertility improvement
- Cognitive function (ALCAR form)
Why it works
L-Carnitine transports fatty acids into mitochondria for energy production. ALCAR (acetyl-L-carnitine) additionally crosses the blood-brain barrier for cognitive benefits.
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How to take L-Carnitine
Best time to take
Before exercise or morning; ALCAR (brain form) in morning
Suggested dose
500–2,000mg daily; ALCAR 500–1,500mg for cognitive benefits
Side effects and risks
- May cause fishy body odor at high doses
- TMAO production concerns at high doses
- GI upset in some
Related supplements
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- 💊 L-Tyrosine (Free-Form)Amino acid for focus under stress
- 🏃 Beta-AlanineMuscle endurance · lactic acid buffer · athletic performance
- 💊 GABACalming amino acid taken for stress and sleep
- 💊 L-Lysine 500mgEssential amino acid often taken for cold sores
- 💊 N-Acetyl L-Cysteine (NAC)Cysteine amino acid and glutathione precursor
Medical disclaimer: Nothing on Stack Ritual constitutes medical advice. The information provided is for educational purposes only. Always consult your doctor or a qualified healthcare provider before beginning, changing, or stopping any vitamin, supplement, or wellness regimen.