USA Today: Hydrate smarter with Nuun’s Kona Cola-flavored caffeine + electrolyte tablets at Amazon Nuun Sport + Caffeine Electrolyte Tablets provide hydration and energy with a Kona Cola flavor. The tablets contain electrolytes to replenish those lost through sweat. The Kona Cola flavor is low in ...

Understanding the Context

Hydrate smarter with Nuun’s Kona Cola-flavored caffeine + electrolyte tablets at Amazon Because caffeine is water and fat soluble, it’s able to exert its affects on many parts of the body. andrew crotty/ Shutterstock It’s recommended that adults consume no more than 400mg of caffeine a ... Few substances have woven themselves so seamlessly into the fabric of daily life as caffeine. Found in coffee, tea, chocolate and countless performance-enhancing supplements, this naturally occurring ...

Key Insights

Caffeine has its perks, but it can pose problems too. Find out how much is too much and if you need to cut down. Find out how much caffeine is in coffee, tea, soda and energy drinks. You may be getting more caffeine than you think you are. How does caffeine affect blood pressure?

Final Thoughts

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 happens mainly in people who don't drink caffeine often, rather than in those who do. Still, the blood pressure response to caffeine differs from person to person.