Green tea may offer calmer focus and fewer stomach issues than coffee

Green tea generally contains much less caffeine than a typical cup of coffee and provides L-theanine, which experts and some studies link to a steadier, calmer focus; the article also cites long-term research associating regular green tea drinking with lower risks of several diseases.

Many people looking to cut back on coffee are choosing green tea. Green tea typically has at least three times less caffeine than a 12-ounce cup of coffee and about 15–48 mg per 8-ounce serving. The article notes that green tea contains L-theanine, an amino acid associated with a steadier, calmer focus, and that some people report less jitteriness and stomach irritation after switching. It also summarizes several long-term studies and reviews that link regular green tea consumption with lower risks of certain health outcomes. Key points: - Caffeine levels: an 8-ounce cup of green tea contains about 15–48 mg of caffeine, generally far less than a similar serving of coffee. - L-theanine and focus: the article reports that L-theanine in green tea is associated with more sustained, calm focus and lower stress markers in some studies and expert comments. - Digestive tolerance: experts quoted say green tea is typically easier on the stomach than coffee, which can be more acidic. - Long-term associations: the article cites cohort studies and meta-analyses that link drinking two or more cups of green tea daily with lower risks of all-cause mortality and certain diseases, including some cancers, stroke and cardiovascular outcomes. - Other research areas: green tea extracts and compounds have been studied for effects on fat oxidation, exercise performance, lipid and glycemic measures, bone health and cognitive markers, though additional research is noted as needed. Summary: Switching from coffee to green tea is reported to reduce caffeine intake while preserving focus and improving digestive comfort for some people, and several studies cited show associations between regular green tea drinking and reduced risks of certain health outcomes. Undetermined at this time.