HealthlineHeart Disease: Does Too Much Caffeine Cause High Blood Pressure?

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A new study presented at the ACC Asia 2024 conference suggests that chronic high caffeine intake may increase the risk of cardiovascular disease. The research, conducted by Nency Kagathara and colleagues, examined the effects of regular caffeine consumption on heart rate and blood pressure recovery after exercise. The findings indicate that consuming more than 400 mg of caffeine daily could potentially impact cardiovascular health.

Key Points:

• Researchers found that consuming over 400 mg of caffeine daily (equivalent to 4 cups of coffee, 10 cans of soda, or 2 energy drinks) may increase cardiovascular disease risk.
• The study involved 92 participants aged 18-45 without pre-existing hypertension.
• Nearly 20% of participants consumed more than 400 mg of caffeine daily, with higher consumption among females in business and management roles in urban areas.
• Participants consuming over 600 mg of caffeine daily showed significantly elevated heart rates and blood pressure after a 3-minute step test, even after 5 minutes of rest.
• Excessive caffeine intake may disturb the parasympathetic system, leading to elevated blood pressure and heart rates over time.
• Moderate caffeine intake has been associated with potential health benefits, including reduced risks of heart failure, type 2 diabetes, and certain cancers.
• Experts recommend monitoring caffeine intake and considering individual responses to different caffeinated beverages.

“Regular caffeine consumption could disturb the parasympathetic system, leading to elevated blood pressure and heart rates.”
– Nency Kagathara, lead study author

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