Two cups of coffee a day for a 70-year-old woman is fine if she is not unwell. Generally speaking, take American black coffee as an example, for every 100 milliliters of black coffee, the caffeine content is 60 to 120 milligrams. The caffeine content may vary with different brands and different processing and production methods. An adult should not consume more than 300 to 400 milligrams of caffeine a day. That translates to two to three small cups of coffee. Two cups of coffee a day for a 70-year-old woman is fine if she doesn’t feel, on her own, adverse reactions such as panic, insomnia, and irritability. Because coffee, in addition to caffeine, also contains alkaloids, tannins and other nutrients, the human body health has a variety of benefits. However, if 70-year-old women combined with some underlying diseases, such as more serious gastritis, gastric ulcer, gastroesophageal reflux, or insomnia problems, cardiac arrhythmia, etc., it is not recommended to drink coffee every day. Usually, you can choose the amount of coffee to drink in your life according to your actual situation, but should not be too much, and at the same time, you can combine with other drinks, such as tea, milk, etc., in order to replenish the body with enough water.