Caffeine: How much is too much? - Mayo Clinic
Feb 21, 2025 · Is caffeine causing you problems? Find out how much is too much and if you need to cut down.
Caffeine content for coffee, tea, soda and more - Mayo Clinic
Feb 6, 2025 · Find out how much caffeine is in coffee, tea, soda and energy drinks. You may be getting more caffeine than you think you are.
The bottom line - Mayo Clinic
If you're like most adults, you use caffeine every day. Most often, it won't cause a health problem. But be aware of caffeine's possible side effects and be ready to cut back if needed ...
Caffeine: Is it dehydrating or not? - Mayo Clinic
Aug 19, 2025 · As a chemical, caffeine increases production of urine, which means caffeine is a diuretic. But most research suggests that the fluid in caffeinated drinks balances the diuretic effect of typical …
咖啡、茶、碳酸饮料等中的咖啡因含量 - 妙佑医疗国际
May 20, 2025 · 含咖啡因的饮料不再仅限于早上饮用。但是，您知道您在饮用咖啡、茶、碳酸饮料或能量饮料时摄入了多少咖啡因吗？ 专家认为，每天摄入不超过 400 毫克（mg）咖啡因对大多数成人来说 …
Caffeine: Does it affect blood sugar? - Mayo Clinic
Mar 7, 2024 · For some people with diabetes, one cup of coffee may raise or lower blood sugar. Learn how caffeine can affect blood sugar.
Caffeine: How does it affect blood pressure? - Mayo Clinic
Jul 9, 2024 · How does caffeine affect blood pressure? Caffeine may cause a brief rise in your blood pressure, even if you don't have high blood pressure. This short-term spike in blood pressure …
Caffeine citrate (intravenous route) - Side effects & uses
Oct 1, 2025 · Description Caffeine citrate injection is used to treat short-term apnea of prematurity when premature babies (infants between 28 and 32 weeks gestational age) stop breathing. Apnea of …
Caffeine (oral route) - Side effects & dosage - Mayo Clinic
Oct 1, 2025 · If you are using caffeine tablets: Limit the use of medicines, foods, or beverages that contain caffeine. Taking too much caffeine may cause nervousness, irritability, sleeplessness, and …
Mayo Clinic
If you use caffeine to wake you up and keep you going, you aren't alone. Millions of people use caffeine every day to stay alert and concentrate better.