What brand of coffee has the most caffeine?

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What drinks have the most caffeine?

The most caffeinated drink is Biohazard Coffee, with 928 mg of caffeine per 350-ml mug. For comparison, most energy drinks contain between 250 and 350 mg caffeine content in servings that vary between 235 and 470 ml.

What are the side effects of drinking too much caffeine?

Side Effects of Drinking Caffeine, According to ScienceA temporary spike in blood pressure. “Because caffeine is a stimulant, it increases your heart rate while it’s in your system,” says general practice physician, Leann Poston, MD.Headaches. Most people associate headaches with caffeine-withdrawal. …Anxiety. …Potential pregnancy complications. …Irritable bowel symptoms. …

How much caffeine is in a typical cup of coffee?

The average 8-ounce cup of coffee contains anywhere from 90-200 mg of caffeine. The amounts of caffeine can vary greatly from one caffeinated coffee drink to another. And even decaf coffee is not entirely caffeine-free — decaf has a small amount of caffeine.