Coffee may protect your heart but energy drinks could harm it

 

Moderate coffee may help the heart, but high-powered energy drinks could push caffeine into dangerous territory.

Date:

July 21, 2026

Source:

American Heart Association

Summary:

For most adults, a daily caffeine habit may be safer for the heart than many people assume. A new American Heart Association review found that up to 400 milligrams of caffeine a day, roughly three to five cups of regular black coffee, is generally safe and may even be linked to lower risks of heart disease, stroke, heart failure, and Type 2 diabetes. But the source matters: highly concentrated energy drinks and shots can sharply raise blood pressure and trigger irregular heart rhythms.

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