Should you eat before taking your supplement? The short answer is: it depends! While some supps serve your body better on an empty stomach, others settle best alongside food. Our Role of L carnitine in female infertility Reproductive Biology and Endocrinology Springer Nature Link L Carnitine for Weight Loss: How It Works, Dosage & Best Supplement Zeelab Pharmacy Acetyl L Carnitine HCl 300 mg Capsules Supports Brain Health Bayview Pharmacy Carnitine supplementation improves metabolic flexibility and skeletal muscle acetylcarnitine formation in volunteers with impaired glucose tolerance: A randomised controlled trial eBioMedicine