Benefits
Superior nitrate density — 9× more than beetroot
Oxystorm® from Amaranthus dubius provides approximately 9× more dietary nitrate per gram than beetroot extract, enabling effective nitrate delivery at much lower inclusion doses in formulas. This allows smaller capsule sizes, better taste profiles (Amaranthus is less earthy than beetroot), and more flexible dosing compared to beetroot-based nitrate ingredients.
Nitric oxide production and vasodilation
Dietary nitrate from Oxystorm® is reduced to nitrite by oral bacteria and further to NO in hypoxic tissues — producing sustained vasodilation, improved endothelial function, and enhanced oxygen delivery to working muscle. These NO-mediated effects improve exercise performance, reduce the oxygen cost of exercise, and support cardiovascular health through mechanisms distinct from (and complementary to) L-arginine/L-citrulline NO precursors.
Blood pressure support
The dietary nitrate-nitrite-NO pathway provides one of the most robustly demonstrated blood pressure-lowering mechanisms in nutritional science. Meta-analyses of multiple RCTs confirm inorganic dietary nitrate (from beetroot, spinach, and other leafy greens) produces clinically meaningful reductions in blood pressure (about 2 to 5 mmHg systolic), seen mainly in normotensive and prehypertensive people; a 2021 meta-analysis found no significant change in those who were already hypertensive.
Sexual health: no human data
No trial of Oxystorm, or of dietary nitrate generally, has measured erectile function, libido or any sexual-health outcome. The only basis for a sexual-health claim is the manufacturer's catalog positioning plus the general nitric-oxide vasodilation mechanism, so no sexual-health benefit can be stated here.
Mechanism of action
Nitrate-nitrite-NO enterosalivary circulation
Dietary nitrate from Oxystorm® is absorbed in the small intestine and concentrated in salivary glands (~10× plasma levels). Oral bacteria reduce salivary nitrate to nitrite via bacterial nitrate reductases — a symbiotic relationship essential for NO production from dietary nitrate. Swallowed nitrite is absorbed and reduced to NO in hypoxic tissues (vascular endothelium, ischemic muscle) by deoxyhemoglobin, xanthine oxidoreductase, and other reductases. This enterosalivary cycling provides sustained plasma nitrite elevation and NO availability for 2–6 hours after ingestion.
Clinical trials
Randomized, double-blind, placebo-controlled acute crossover in 15 recreationally-active adults (Moore et al., Sports 2017; PMID 29910440), measuring plasma nitrate/nitrite and graded-exercise-test markers after a single 1,000 mg dose.
15 recreationally-active adults; single acute dose, crossover.
In 15 recreationally-active adults given a single 1,000 mg dose (about 90 mg nitrate), plasma nitrate rose sharply versus placebo, but circulating nitrite did not change significantly. VO2 at the ventilatory threshold was 6.1% higher with the extract, while time-to-exhaustion and peak VO2 were slightly and non-significantly lower. Funded by DolCas Biotech, the ingredient's developer. Red spinach (Amaranthus dubius) carries more nitrate per gram than beetroot.