The Claim
Consuming 845 mg of dietary nitrate daily from spinach for 7 days in healthy adults aged 18–50 reduces arterial stiffness by approximately 6.9% from baseline, as measured by augmentation index, and lowers central systolic blood pressure by 3.4 mmHg and brachial systolic blood pressure by 3.5 mmHg at 180 minutes post-consumption.
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.
Healthy adults aged 18–50 who consume 845 mg of dietary nitrate from spinach daily for 7 days experience a 6.9% reduction in arterial stiffness and a 3.4–3.5 mmHg decrease in systolic blood pressure at 180 minutes after consumption.
See the scientific wording
Consuming 845 mg of dietary nitrate daily from spinach for 7 days in healthy adults aged 18–50 reduces arterial stiffness, as measured by augmentation index, by approximately 6.9% from baseline, and lowers central systolic blood pressure by 3.4 mmHg and brachial systolic blood pressure by 3.5 mmHg at 180 minutes post-consumption, suggesting that dietary nitrate from whole vegetables may acutely improve vascular function.
When you eat spinach rich in nitrate, bacteria in your mouth turn it into nitrite, which enters your blood and gets converted into nitric oxide. Nitric oxide tells the muscles in your artery walls to relax, making the arteries more flexible and lowering blood pressure.
What the research says
1 studyThis study found that eating a lot of spinach every day for a week made people’s arteries less stiff and lowered their blood pressure a little bit, especially about three hours after eating. The results match exactly what the claim says.
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.