l-carnitine levels in energy drinks Decaf Refresher Base PowerBar - L-Carnitine Low Calorie

Consistency is more important than exact timing the key is to take it daily for sustained benefits

Acetyl L Carnitine - Acetyl L-Carnitine powder has been studied quite heavily and is commonly used by athletes

[DOI] [PMC free article] [PubMed] [Google Scholar] Patera AC, Drewry AM, Chang K, Beiter ER, Osborne D, Hotchkiss RS, 2016

Conclusion The key pathogenic mechanisms driving MODS are well established, forming a complex, interconnected network

ALCAR administration affects the inner mitochondrial membrane protein composition in rat cerebellum (Villa et al., 1988), increases human erythrocyte membrane stability possibly by interacting with cytoskeletal proteins (Arduini et al., 1990), increases human erythrocyte cytoskeletal protein-protein interactions (Butterfield & Rangachari, 1993), and alters the membrane dynamics of human erythrocytes in the region of the glycerol backbone of membrane phospholipid bilayers (Arduini et al., 1993)

When it comes to L-effect carnitine's on athletic performance, the evidence is conflicting