Having a cup of coffee in the morning is something most of us do. Maybe even a coffee break at work, and even some after dinner. But unless you’re drinking decaf, just how much caffeine is too much for one day?
Well, for those with a healthy heart, both the American Heart Association and the U.S. Food and Drug Administration say three to four cups of coffee per day is the limit for most people. It’s between 300 and 400 milligrams of caffeine, which is the equivalent of four or five cans of soda, and nearly 15 cups of green tea.
That’s the limit over the course of 24 hours. Any more than that, keep an eye out for signs of too much caffeine consumption, including insomnia, heart palpitations, excessive sweating, nausea, and headaches.
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