The Claim

Citrulline-malate ingestion has no significant effect on blood lactate levels during or after upper-body resistance exercise in trained males, even though it improves repetition performance, indicating that the enhancement in endurance is not due to reduced lactate accumulation.

Source: Effects of Supplemental Citrulline-Malate Ingestion on Blood Lactate, Cardiovascular Dynamics, and Resistance Exercise Performance in Trained Males

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
48score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

How it works
1 study reviewed
In plain English

Taking citrulline-malate during upper-body weight training does not lower blood lactate levels in trained men, even though it allows them to perform more repetitions, meaning the improvement in endurance is not caused by reduced lactate.

See the scientific wording

Citrulline-malate ingestion does not significantly alter blood lactate levels during or after upper-body resistance exercise in trained males, despite improving repetition performance, indicating that enhanced endurance is not mediated by reduced lactate accumulation.

Why this might work

Citrulline-malate provides raw materials that help muscles make more energy quickly, allowing them to keep working longer without getting tired from energy shortage, even though the burning sensation from lactic acid doesn't change.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: Effects of Supplemental Citrulline-Malate Ingestion on Blood Lactate, Cardiovascular Dynamics, and Resistance Exercise Performance in Trained Males

    Taking citrulline-malate helped men do more push-ups and chin-ups without making their muscles more sore from lactic acid buildup — so the extra strength must come from something else, not less lactic acid.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.