L-Citrulline is widely recognized for its role in enhancing nitric oxide production, which improves blood flow and supports muscle endurance. The timing of supplementation indeed plays a crucial role in maximizing its benefits. Taking L-Citrulline pre-workout is often recommended because it can increase nitric oxide levels during exercise, promoting better oxygen delivery to muscles, reducing fatigue, and potentially boosting performance. Many athletes report improved endurance and decreased muscle soreness when consuming it about 30-60 minutes before activity.

On the other hand, integrating L-Citrulline into a post-exercise regimen may support recovery by aiding in the removal of ammonia and other metabolic waste products, potentially reducing muscle soreness and improving subsequent training sessions. However, the acute performance-enhancing effects are less pronounced post-workout compared to pre-workout intake.

Regarding multiple daily doses, spreading L-Citrulline intake can maintain elevated plasma levels, which may benefit individuals engaging in frequent or prolonged training sessions, supporting both endurance and recovery. Dosage is important; studies often highlight 6-8 grams per day as effective, but individual responsiveness varies.

Lifestyle and diet influence absorption and efficacy. For example, adequate hydration is essential, as L-Citrulline’s circulatory benefits rely on optimal blood volume. Co-ingestion with carbohydrates might enhance nitric oxide production by supporting energy metabolism. Additionally, pairing with supplements like beetroot or arginine could amplify vasodilatory effects, though interactions should be considered carefully.

In summary, pre-workout timing is generally optimal for performance benefits, while varied timing and dosage can support recovery and endurance. Tailoring intake based on training intensity, lifestyle habits, and nutritional context ensures the greatest advantage from L-Citrulline supplementation.