Drinking beetroot juice with or without vitamin C didn't make a difference in blood vessel health measurements for healthy young adults.

When healthy young adults drank beetroot juice with vitamin C, their daily systolic blood pressure went down a bit compared to before they started the treatment.

Drinking beetroot juice every day for a month, with about 800 mg of natural nitrates, doesn’t seem to make blood vessels in the arms work better or worse in older people who are already taking medicine for high blood pressure.

When people take nitrate (from beetroot juice) and vitamin C together, their bodies produce more nitrite in urine and saliva than when they take just nitrate or no nitrate.

Drinking beetroot juice once can temporarily make blood flow better in the arms of older people with high blood pressure, but if they drink it every day, that boost goes away after a while.

Drinking beetroot juice in a warm room doesn't make your blood pressure go down compared to drinking a placebo in the same warm room.