Here’s what the maximum amount of caffeine you should be drinking in a day looks like

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And you thought Red Bull was bad.

Turns out that while a can of the vilified energy drink has 80 mg of caffeine (less than a quarter of the amount you should have each day, according to the Mayo Clinic), one small cup of Starbucks drip coffee has nearly 5 times that amount.

Regardless of how you get your caffeine, it’s important to keep in mind that it’s a stimulant with some positive and negative effects.

And the amount of caffeine that’s in various drinks — or even the same drink from a different chain — can vary drastically. Here’s how much caffeine is in everything from a can of Coke to a plain coffee from McDonald’s:

[slideshow]
[slide
permalink=”/#one-and-a-half-cups-of-starbucks-coffee-1″
title=”One and a half cups of Starbucks coffee”
content=”According to the Mayo Clinic, most healthy adults can safely consume up to 400 mg of caffeine each day. But while most 12-ounce cups of coffee contain somewhere between 90 and 120 mg of caffeine, one 12-ounce ‘tall’ or small cup of Starbucks is far stronger, with about 260 mg of caffeine per cup.”
image=”http://static.businessinsider.com/image/56fc0b2591058422008b99bb”
source=”Samantha Lee/Business Insider”
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]
[slide
permalink=”/#about-two-bottles-of-5-hour-energy-2″
title=”About two bottles of 5-Hour Energy”
content=”These tiny bottles, or ‘shots,’ contain nearly the same amount of caffeine as a cup of Starbucks, which in reality is closer to 4 cups of regular coffee. Each 2-ounce shot has about 215 mg of caffeine.”
image=”http://static.businessinsider.com/image/56fd264752bcd01f7b8b99d3″
source=”Samantha Lee/Business Insider”
caption=””
credit_href=””
]
[slide
permalink=”/#about-four-mcdonalds-coffees-3″
title=”About four McDonald’s coffees”
content=”Unlike Starbucks coffee, McDonald’s drip contains roughly the same amount of caffeine as a ‘standard’ cup of Joe. Each 12-ounce cup has about 109 mg of caffeine.”
image=”http://static.businessinsider.com/image/56fd265552bcd05b008b9d88″
source=”Samantha Lee/Business Insider”
caption=””
credit_href=””
]
[slide
permalink=”/#five-cans-of-red-bull-4″
title=”Five cans of Red Bull”
content=”While there’s lots of info out there about how bad energy drinks are for you, a single 8-ounce can of Red Bull contains 80 mg of caffeine, less than the a standard cup of coffee and roughly three times fewer caffeine than in a 12-ounce Starbucks coffee. It also contains other ingredients, however, like taurine, whose long term effects have yet to be studied extensively.”
image=”http://static.businessinsider.com/image/56fc2b4c52bcd05b008b9b6f”
source=”Samantha Lee/Business Insider”
caption=””
credit_href=””
]
[slide
permalink=”/#about-six-cups-of-brewed-black-tea-5″
title=”About six cups of brewed black tea”
content=”You might be surprised to learn that not all tea is designed to lull you into a relaxed, sleepy state. An average cup of brewed black tea contains about 67 mg of caffeine, still less than a can of Red Bull or a cup of McDonald’s coffee, but far from minimal.”
image=”http://static.businessinsider.com/image/56fc0c16910584155c8b9815″
source=”Samantha Lee/Business Insider”
caption=””
credit_href=””
]
[slide
permalink=”/#just-about-12-cans-of-coke-6″
title=”Just about 12 cans of Coke”
content=”One 12-ounce can of Coke has 34 grams of caffeine. While that might seem pretty low, if you’re like us and drink a few of these throughout the course of the day, it can add up! Still, a single can is the rough equivalent of about a third of a cup of regular coffee or about a seventh of a cup of Starbucks.”
image=”http://static.businessinsider.com/image/56fc0c229105841d008b9b11″
source=”Samantha Lee/Business Insider”
caption=””
credit_href=””
]
[slide
permalink=”/#about-five-and-a-half-lattes-7″
title=”About five and a half lattes”
content=”A standard shot of espresso contains about 71 mg of caffeine, meaning that a small latte (espresso plus steamed milk) or cappuccino (espresso plus milk and foam) — so long as its made with a single shot — contains the same amount.”
image=”http://static.businessinsider.com/image/56fc2cd99105841d008b9bc8″
source=”Samantha Lee/Business Insider”
caption=””
credit_href=””
]
[/slideshow]