The Claim
Spinach-derived nitrate has a greater effect on central blood pressure and arterial stiffness than on peripheral (brachial) blood pressure, indicating a preferential improvement in large artery function relative to systemic arterial pressure.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Consuming nitrate from spinach reduces central blood pressure and arterial stiffness more than it reduces blood pressure in the arm, showing a stronger effect on large arteries than on overall systemic pressure.
See the scientific wording
The vascular effects of spinach-derived nitrate are more pronounced in central blood pressure and arterial stiffness than in peripheral (brachial) blood pressure, suggesting that nitrate may preferentially improve large artery function over general systemic pressure.
When you eat spinach, bacteria in your mouth turn the nitrate in it into nitrite, which enters your blood and becomes nitric oxide. This gas relaxes the walls of your large arteries, making them less stiff and lowering the pressure near your heart more than in your arm arteries.
What the research says
1 studyEating spinach lowered the pressure in the big arteries near the heart and made those arteries less stiff more than it lowered the pressure in the arm, meaning spinach’s nitrate might be especially good for heart health.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.