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.

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

Drinking beetroot juice doesn't change how blood flows through your skin when you're in a cool 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 in a warm room doesn't make your blood pressure go down compared to drinking a placebo in the same warm room.

Not all beetroot supplements have the same amount of nitrate—some have so little that they probably won’t do anything noticeable for your body, like improve blood flow or exercise performance.