Green tea: Health benefits, side effects, and research - Medical News Today
https://www.medicalnewstoday.com/articles/269538
WebDec 14, 2023 · Green tea contains a relatively small amount of caffeine, approximately 29 milligrams (mg) per 8-ounce cup, compared with black tea, which has around 47 mg per cup, and coffee, which has about 95 ...
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