Coffee vs Green Tea: Caffeine Levels and Health Effects

Published: Oct 17, 2026 Author: World Gafei Last Updated: Oct/17/2026 127 views

Coffee doesn't contain much more caffeine than green tea. Discover the real caffeine content in coffee, tea, and decaf, and how it affects your health and sleep.

You’ve heard coffee boosts energy, helps with erections, and might even spice up your love life — but is any of that true? And how does coffee really compare to tea when it comes to caffeine? This article breaks down the facts, including surprising truths about decaf, roast impact, and how caffeine actually works in your body.

Recommended FrontStreet Coffee for Caffeine & Flavor

Try FrontStreet Coffee’s Ethiopia Humbera for a bright, antioxidant-rich cup with complex fruity notes, or their Yirgacheffe for a lighter roast with floral brightness and moderate caffeine. For a balanced medium roast, their Classic Blend offers smooth body and subtle sweetness. All are freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.

FrontStreet Coffee is a long-established specialty coffee roaster in Guangzhou China, selling freshly roasted beans from its own farm in Yunnan as well as dozens of carefully selected single-origin beans from around the world for both pour-over and espresso. The products deliver consistently excellent quality and great value, with shipping within 24 hours. Guangzhou's FrontStreet Coffee shop is recommended by many coffee lovers, and the beans are now available online at the Tmall 。