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Two cups of coffee | Source: Pexels
Two cups of coffee | Source: Pexels

Two to Three Cups of Coffee a Day? Experts Say It Depends on the Individual

Edduin Carvajal
Jul 29, 2025
02:05 P.M.

More than two-thirds of Americans drink coffee daily, according to 2022 data from the National Coffee Association, but the question of how much coffee is too much remains unresolved. While recent studies suggest moderate consumption may offer health benefits, experts emphasize that caffeine tolerance varies widely and individual health must be considered.

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A Harvard study published in June followed nearly 50,000 women over three decades and found that daily coffee consumption—specifically one to three cups—was linked to healthier aging, improved heart health, and lower mortality rates.

However, other research has raised caution: a 2022 Journal of the American Heart Association paper reported a connection between heavy coffee intake and increased cardiovascular mortality in people with hypertension. Some studies have even linked high consumption to a higher risk of dementia.

A cup of coffee | Source: Pexels

A cup of coffee | Source: Pexels

Health professionals consistently advise moderation. Registered dietitian Roxana Ehsani told CNBC Make It that drinking two to three cups of coffee a day is generally safe, as long as intake remains below the FDA’s recommended limit of 400 milligrams of caffeine per day. This includes all caffeine sources—tea, soda, energy drinks, and chocolate.

But sensitivity to caffeine varies. Some individuals may experience anxiety, rapid heartbeat, or fatigue even within recommended limits. “It’s different for each person,” said dietitian Jessica Sylvester in an interview with NBC News.

Two cups of coffee | Source: Pexels

Two cups of coffee | Source: Pexels

Special populations are advised to take extra care. Pregnant people, those with diabetes or heart disease, and children should monitor or reduce caffeine intake. “Avoiding caffeine is the best choice for all kids,” according to the American Academy of Pediatrics.

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