Can I drink functional drinks the day before the physical examination

It is usually not recommended to drink functional drinks the day before the physical examination. Functional beverages may contain caffeine, sugar, or other ingredients that may affect the accuracy of some physical examination results. Caffeine in functional beverages may stimulate the nervous system, causing temporary increases in blood pressure, heart rate, and other indicators, which can interfere with cardiovascular related examinations. Some functional beverages contain high levels of sugar, which may affect blood sugar and lipid test results. Some added ingredients such as taurine and vitamin B may interfere with biochemical indicators such as liver and kidney function. 8-12 hours before the physical examination, one should maintain an empty stomach and avoid drinking beverages containing sugar, alcohol, or irritants. Only moderate amounts of water should be consumed. Three days before the physical examination, one should maintain a regular daily routine and a light diet, avoiding intense exercise or emotional fluctuations.

Coffee, strong tea, alcohol, and functional drinks should be avoided 24 hours before the physical examination, with plain water as the main beverage. On the morning of the day of the examination, complete fasting and drinking are required, and loose clothing should be worn for easy blood collection and examination. If it is necessary to drink functional beverages due to special circumstances, it is necessary to inform the doctor in advance and consider adjusting the physical examination time. After completing the physical examination, it is advisable to supplement water and nutrition appropriately, but it is necessary to avoid overeating.