l-carnitine doping Carnitine 1000 Mo Farah: Doctor says L-carnitine

Not for individuals with cardiovascular conditions, heart arrhythmia, or high blood pressure the combined stimulant load from caffeine, PEA alkaloids, Synephrine, and Yohimbine is significant

Supplementing with creatine monohydrate has been shown to increase muscle phosphocreatine stores, supporting ATP regeneration during high-intensity exercise and leading to greater strength, power, and muscle mass gains

[88] Treatment with pharmaceutical amphetamines is generally less preferred relative to other stimulants (e.g., modafinil) and is considered a third-line treatment option

How to support your marathon preparation with nutritional supplements Running a marathon is an extreme challenge