Now for vitiligo can have a cup of coffee this problem, and there is no clear research data show that coffee has effect on vitiligo. That doesn't mean vitiligo patients must be able to drink coffee. In the long run, vitiligo patients drink less still had better. Because many studies have shown that although the caffeine in coffee can stimulate the central nervous system, make it produce obvious excitation, and can dilate blood vessels, promote blood circulation, promote the blood circulation in the brain, therefore, a suitable amount of drinking coffee, is a kind of effective means to improve the mental and physical strength.

But long-term consumption can produce certain effect to health. Because caffeine has a certain toxicity, such as excessive intake, will the physiological function of human body such as nerve activity, blood circulation and digestive system barrier, etc. If a continuous drink more than three cups of coffee, can appear emotional tension, anxiety, shortness of breath. Such as ten cups, drinking will cause poisoning, dizziness, tinnitus, blood pressure, blurred vision, rapid arrhythmia, severe cases can also lead to insanity, muscle tremors coffee drinkers increases the chance of heart disease patients with myocardial infarction, coffee also can stimulate the gastric mucosa and the stomach, gastric perforation lead to gastric ulcer patients. As a result, people with heart disease, high blood pressure, ulcer disease, usually should not be drinking coffee.