Adequate macro and microvascular endothelial function during pregnancy is essential for the normal placental development and growing fetus. Beetroot juice (BJ) promotes improvement ins this parameters in no-pregnant individuals, however the beneficial effect did not avaliated in pregnant. The present study evaluated effects of BJ on macro and microvascular endothelial function in pregnant. Twelve pregnant were submitted to BJ and nitrate-depleted juice (PLA) interventions. Brachial flow-mediated dilation (FMD) and muscle oxygenation were measured 120 min after interventions. Urinary nitrate, nitrite were measured at baseline and 120 min after interventions.

Inclusion Criteria:

• gestation between 20 and 35 weeks;
• over 18 years

Exclusion Criteria:

• diabetes mellitus and gestational diabetes;
• hypertensive syndromes;
• HIV positive;
• liver or kidney disease;
• beetroot allergy;
• use of antioxidants and medicament that alter endothelial function;
• use of antibiotics up to 2 weeks before the visits and using.

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