Is an ounce of vodka considered one serving alcohol?

It depends on what you mean by "serving."

* Standard drink: In the US, a standard drink is defined as 0.5 fluid ounces (14.8 ml) of pure alcohol. This is equivalent to:

* 1.5 ounces of 80-proof (40% alcohol) vodka

* 12 ounces of beer (5% alcohol)

* 5 ounces of wine (12% alcohol)

* Serving size: An ounce of vodka is often considered a single serving on a bottle of liquor, but that doesn't necessarily make it a "standard drink." The percentage of alcohol in the vodka matters.

* Individual needs: The amount of alcohol considered a "serving" can vary based on individual factors like body weight, tolerance, and the situation.

So, while an ounce of vodka is often considered a serving, it may not be considered a standard drink.

It's important to be aware of the alcohol content in your drinks and to consume alcohol responsibly.