Increased Anxiety: High caffeine intake can exacerbate anxiety and stress levels.

Digestive Issues: May cause stomach upset or acid reflux in some individuals.

Heart Palpitations: Can lead to irregular heartbeats or palpitations in sensitive individuals.

Increased Blood Pressure: May temporarily raise blood pressure, especially in those with hypertension.

Dependence: Regular high consumption can lead to caffeine dependence and withdrawal symptoms.

Bone Health: Excessive intake may affect calcium absorption, impacting bone health.

Pregnancy Risks: High caffeine consumption during pregnancy may be linked to complications.

Headaches: Overconsumption can trigger headaches or migraines in some people.

Mood Swings: Fluctuations in caffeine levels can lead to irritability and mood swings.