Coffee is a common drink in daily life, and does not have the effect of drugs to reduce swelling. The caffeine content in coffee is limited and cannot act as a drug, so it does not have the effect of reducing swelling. Coffee is a beverage made from roasted coffee beans, in which every 100 grams of coffee (beans) contains 1,292 kilojoules of energy, 8.8 grams of fat, 68.9 grams of carbohydrates, 2013 milligrams of potassium, and other nutrients, and drinking coffee in moderation can replenish the body’s energy and nutrients. However, it is not recommended to drink too much coffee, so as not to cause gastrointestinal discomfort, such as abdominal pain, bloating and other symptoms. For people with heart disease and premature contractions, coffee should not be consumed, as it may affect the recovery of the patient’s condition. Pregnant women, lactating women and infants should not drink coffee. Coffee should be consumed in moderation according to one’s own condition and reaction, and should not be consumed in excess.