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Nitric Oxide and Exercise: How NO Supports Blood Flow, Performance and Men's Health

The molecule behind the pump.

Quick answer

Nitric oxide (NO) is a signalling molecule made in the lining of blood vessels that tells the surrounding muscle to relax, allowing vessels to widen and blood to flow more freely. This helps deliver oxygen and nutrients to working muscles and plays an important role in men's sexual health. The body makes nitric oxide from the amino acid L-arginine and from nitrates in foods such as beetroot and leafy greens. Regular aerobic and resistance exercise, a vegetable-rich diet, not smoking and keeping blood pressure and blood sugar healthy all support nitric oxide. L-arginine can lower blood pressure and should not be combined with nitrate medicines or PDE5 inhibitors without medical advice.

Key takeaways

That full, "pumped" feeling during a workout is largely down to nitric oxide. Here is what it does and how to support it.

Nitric oxide at a glance

QuestionAnswer
What is it?A gas-signalling molecule made in blood vessel walls
What does it do?Helps blood vessels relax and widen
Made fromL-arginine and dietary nitrates
Declines withAge, inactivity, smoking, poor diet

How to support nitric oxide naturally

Exercise regularly

Blood flowing faster over vessel walls during exercise stimulates NO production.

Eat nitrate-rich vegetables

Beetroot, spinach, rocket and celery are excellent sources.

Get enough L-arginine and citrulline

Found in nuts, seeds, meat, fish and watermelon.

Don't smoke

Smoking damages the vessel lining that produces nitric oxide.

Watch your mouthwash

Mouth bacteria help convert dietary nitrates; strong antibacterial mouthwash may reduce this.

Supplement support

TitanTransform includes L-arginine to promote healthy blood flow, together with moomiyo for endurance and recovery and gymnema for healthy sugar metabolism.

Safety: L-arginine may lower blood pressure. Do not combine it with nitrate heart medicines or erectile dysfunction drugs (PDE5 inhibitors) without your doctor's approval, and avoid it after a heart attack unless advised otherwise.

Sources

  1. Lundberg J.O. et al. – "The nitrate-nitrite-nitric oxide pathway in physiology and therapeutics," Nature Reviews Drug Discovery, 2008.
  2. Jones A.M. – "Dietary nitrate supplementation and exercise performance," Sports Medicine, 2014.
  3. NIH MedlinePlus – "L-arginine."

Common questions

What does nitric oxide do?

It helps blood vessels relax and widen, supporting blood flow.

How can I increase nitric oxide naturally?

Exercise and eat nitrate-rich vegetables such as beetroot and spinach.

Is L-arginine safe with heart medicines?

Not with nitrates or PDE5 inhibitors unless your doctor approves.

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