Caffeine Control: Understanding the Risks of Overconsumption

Recommended Caffeine Intake

The Dietary Guidelines for Americans suggest that moderate caffeine consumption—defined as up to 400 milligrams per day (about four 8-ounce cups of coffee)—can be part of a healthy diet for most adults. However, even within these limits, individual tolerance can vary significantly based on factors like age, weight, metabolism, and overall health.

Physical Health Risks of Excessive Caffeine Consumption

1. Cardiovascular Issues

High caffeine intake can lead to various cardiovascular problems, including:

• Increased heart rate: Excessive caffeine can cause tachycardia (abnormally fast heart rate), which can be dangerous for individuals with heart conditions.
• Elevated blood pressure: Regular consumption of large amounts of caffeine can result in persistently high blood pressure, increasing the risk of heart disease and stroke.
• Arrhythmias: Some people may experience irregular heartbeats (arrhythmias) after consuming high doses of caffeine.

2. Digestive Problems

Caffeine is known to stimulate the production of stomach acid, which can lead to:

• Gastroesophageal reflux disease (GERD): Increased acid production can cause acid reflux and worsen symptoms of GERD.
• Stomach ulcers: Excessive caffeine can aggravate existing stomach ulcers and cause discomfort.