Drinking beetroot juice doesn't change how blood flows through your skin when you're in a cool room.

Whether you drink beetroot juice or not, you feel equally cold when you're in a cool room.

Drinking beetroot juice in a cool room doesn't change how much nitrate is in your blood compared to drinking it in a warm room.

Drinking beetroot juice before going into a cool room stops your blood pressure from going up as much as it normally would when you're cold.

Drinking beetroot juice with 400 mg of nitrate raises levels of nitrate and nitrite in the blood of young, active men during leg exercise, but does not improve how well they perform, how much blood flows to their muscles, how efficiently they use energy, or their hormone levels during the exercise.

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.