The Claim

Four weeks of 10-gram daily L-citrulline supplementation increases forearm blood flow by 48 mL/min and vascular conductance by 41 mL/mmHg/min during handgrip exercise in hypertensive postmenopausal women, indicating enhanced peripheral arterial vasodilation during physical activity.

Source: L-Citrulline Supplementation Improves Arterial Blood Flow and Muscle Oxygenation during Handgrip Exercise in Hypertensive Postmenopausal Women

What the research says

Supports is higher

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

Supports
66score
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.

Cause and effect
1 study reviewed
In plain English

Taking 10 grams of L-citrulline daily for four weeks increases blood flow and vessel dilation in the forearms of hypertensive postmenopausal women during handgrip exercise.

See the scientific wording

Four weeks of 10-gram daily L-citrulline supplementation increases forearm blood flow by 48 mL/min and vascular conductance by 41 mL/mmHg/min during handgrip exercise in hypertensive postmenopausal women, indicating enhanced peripheral arterial vasodilation during physical activity.

What the research says

1 study
  1. Study: L-Citrulline Supplementation Improves Arterial Blood Flow and Muscle Oxygenation during Handgrip Exercise in Hypertensive Postmenopausal Women

    This study found that taking 10 grams of L-citrulline daily for four weeks helped women with high blood pressure get more blood flow to their forearms during hand exercises, making their blood vessels open up better when they move.

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.

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