How to Take Nitric Oxide Supplements: Doses and Timing by Ingredient
A practical nitric oxide supplement dosing guide: nitrate versus beetroot weight, citrulline and arginine regimens, timing, label checks and safety.
Evidence library 25 analyses
Nitric Oxide
Evidence on nitric-oxide support, vascular function and performance, including nitrate pathways, dosing, safety and supplement claims.
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All Nitric Oxide analysis
Browse every published guide, review and evidence update in this topic.
L-Citrulline vs Citrulline Malate: Forms, Ratios and Evidence
Pure L-citrulline versus citrulline malate explained: formulation ratios, actual citrulline content, human performance studies and common label mistakes.
L-Citrulline Dosage: Study Ranges, Timing and Safety
How much L-citrulline did human trials use? Learn pure-citrulline versus malate dosing, athletic and ED research, timing and medication cautions.
Nitric Oxide and Exercise Performance: What the Trials Show
Does nitric oxide improve athletic performance? Explore nitrate, beetroot, citrulline and arginine trials, endurance versus sprint outcomes and timing.
Mouthwash, Oral Bacteria and Nitric Oxide: What Research Shows
Does mouthwash reduce nitric oxide? Examine oral nitrate-reducing bacteria, small human trials, blood-pressure signals and how to protect dental health.
Nitric Oxide and Endothelial Function: Mechanisms and Human Evidence
How nitric oxide supports endothelial function, what impairs NO bioavailability, and what nitrate and amino-acid trials show about vascular outcomes.
Nitric Oxide and Aging: How Vascular Signaling Changes
Learn how nitric oxide signaling can change with aging, the roles of endothelial function and oral bacteria, and what clinical trials have and have not proven.
Low Nitric Oxide: Causes, Symptoms and Tests Explained
Can you have low nitric oxide? Understand endothelial dysfunction, nonspecific symptoms, vascular risks, saliva-strip limitations and when to seek care.
Foods That Increase Nitric Oxide: A Dietary Nitrate Guide
Which foods support nitric oxide? Discover beetroot, arugula, spinach and other nitrate-rich vegetables, cooking variability and evidence-based diet tips.