- Coffee: AHA Highlights Benefits, Safety Limits for Heart Health Healthline
- Coffee and heart health: How many cups of caffeinated coffee are safe to drink each day? www.heart.org
- How much coffee is safe to drink? The Washington Post
- Coffee lovers can take heart: Up to 5 cups a day appears safe for most adults, experts say Fox News
- The American Heart Association has a new number for daily coffee—and a warning if you go over it Fortune
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