One of the most common cocktails on the bar menu is Long Island iced tea, a delicious and refreshing drink. Unfortunately, they probably aren’t the smartest thing to order when you perch on to a bar stool. Here's why you might want to rethink reaching for that tall glass of something cold known as the Long Island iced tea.

The popular drink has an incredibly high alcohol content. The drink traditionally contains a cocktail of liquors, including vodka, gin, rum, tequila and Triple Sec. Per Liqour.com, the average Long Island Iced Tea has 3.75 ounces of alcohol, which is more than double of a 1.5-ounce shot.

Apart from being loaded with alcohol, they’re also very caloric. The cocktail can pack a whopping 780 calories because of all the alcohol, sour mix and cola, per Drink’s Business. The site has dubbed the drink one of the "world's most fattening drinks."