@pharmgymrat: L-citrulline explained like you’re 5 💪 Not medical advice 🤝 L-citrulline helps your body make nitric oxide Nitric oxide helps blood vessels relax More blood can flow to your working muscles More blood flow = that muscle pump TLDR: L-citrulline → nitric oxide → more blood flow → PUMP #gym #Fitness #gains #Science #preworkout