The buzz about caffeine and health
For most people, consuming caffeine from coffee, tea, or chocolate poses no serious health risk if taken within safe amounts. Healthy people who have never had a heart attack or currently manage high blood pressure should consume no more than 400 mg per day, which is about the amount in four cups of coffee or 10 cups of black tea. However, people who have had a prior heart attack or have heart disease should keep their dosage to about half that per day.
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