Drinking cola and coffee in moderation has no special effects on the human body. If they are consumed in excess, they may cause palpitations, numbness of the limbs and other discomforts. Special people should drink with caution.
A cup of regular sugary cola contains 30mg of caffeine, while a cup of coffee contains 65-150mg of caffeine, depending on the degree of coffee concentration (the exact amount fluctuates). The upper limit of daily caffeine intake for healthy adults is 400mg. Healthy adults who consume a moderate amount of cola and coffee to ensure a normal caffeine intake will have no special effects on the human body.
If both are consumed in excess, resulting in excessive caffeine intake, it may cause elevation of blood sugar and blood pressure, and lead to increased heart rate, palpitations, numbness of limbs, vomiting, diarrhea and other discomforts, and large amounts of coffee intake by epileptic patients may also lead to seizures and other adverse reactions, which are detrimental to health.
Special groups such as pregnant women, children, gastric ulcer patients, caffeine intolerant people, people with insufficient water consumption, should be cautious of eating caffeinated drinks and food.