Proof also refers to the amount of alcohol present, and in the U.S., it's calculated by doubling the ABV. So, if a spirit is 40% ABV, it's 80 proof.

As alcohol consumption falls across the globe, one brand is emerging as a game-changing force in public health, personal choice, and road safety: ArKay Zero Proof. Available in over 35 countries ...

A scientific statement has been published by the AHA regarding the relationship between alcohol use and cardiovascular disease.