In pregnant women, the amount of Veillonella dispar bacteria in the mouth wasn't linked to systolic blood pressure, but showed a similar pattern to diastolic blood pressure that wasn't quite statistically significant.

In pregnant women, higher levels of Veillonella parvula bacteria in the mouth were linked to lower diastolic blood pressure, and showed a similar but less strong pattern for systolic blood pressure.

In pregnant women, having more Veillonella bacteria in the mouth was linked to lower blood pressure readings.