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L-Arginine and Brain Blood Flow

L-Arginine and Brain Blood Flow

Quick answer

  • Nitric oxide relaxes blood vessels.
  • Citrulline converts to arginine in the body.
  • Can add to blood pressure and ED medicines.

Nitric oxide basics

Arginine is a building block for nitric oxide, which helps blood vessels relax (NIH ODS).

Why citrulline

Citrulline is converted to arginine and may raise arginine levels more steadily.

Blood flow and the brain

Healthy circulation supports oxygen and nutrient delivery; direct memory evidence is limited.

Cautions

Avoid combining with nitrates or ED drugs without a doctor.

More

See all ingredients.

Frequently asked questions

Does L-arginine improve memory?

Evidence for memory specifically is limited.

Is L-arginine safe with blood pressure pills?

Ask your doctor; it may add to their effect.

This article is general information, not medical advice. Talk to your doctor before starting any supplement. We may earn a commission from links on this page; see our disclosure and editorial standards.

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