Health impacts of caffeinated versus decaffeinated coffee

Scientific research highlights distinct differences between caffeinated and decaffeinated coffee regarding their physiological effects. While a standard 150 ml espresso contains approximately 37 mg of caffeine, decaffeinated versions typically contain less than 5 mg, representing a reduction of about 97%.

Decaffeinated coffee retains many of the beneficial properties found in regular coffee, including antioxidants and anti-inflammatory polyphenols. However, it is not necessarily a gentler option for digestive health; because the acids remain present in the bean, decaffeinated coffee can still cause gastric irritation or heartburn.

Consumers are advised to check labels, as caffeine levels can vary significantly between capsule, instant, and Americano styles. Additionally, the method of decaffeination matters, as some processes may leave traces of chemical solvents, making the selection of high-quality brands important for minimizing potential side effects.