The Claim
Citrulline consumption before exercise reduces plasma lactate accumulation during sustained physical activity.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Taking citrulline before working out leads to lower levels of lactate in the blood during prolonged exercise.
See the scientific wording
Citrulline consumption before exercise reduces plasma lactate accumulation during sustained physical activity.
Citrulline is converted into arginine, which boosts nitric oxide production to widen blood vessels and improve oxygen delivery to muscles. At the same time, citrulline helps remove ammonia built up during exercise, which reduces the body's need to produce energy without oxygen. With more oxygen available and less ammonia, muscles burn pyruvate for energy instead of turning it into lactate, so less lactate builds up in the blood.
What the research says
2 studiesPeople who drank a special watermelon juice with citrulline before running a half-marathon had less lactic acid in their blood afterward than those who drank a plain drink. This means citrulline helped their bodies use oxygen better instead of building up fatigue-causing acid.
Study: The Effect of Citrulline/Malate on Blood Lactate Levels in Intensive Exercise
People who took a citrulline supplement before working out had much lower levels of lactate in their blood during and after exercise compared to those who didn't, meaning they felt less muscle burn and fatigue.
Related videos
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 2 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.