Coffee

Coffee contains caffeine, a molecule that promotesTrusted Source alertness, improves mood, and increases physical and mental performance. It also may also containTrusted Source a range of polyphenols, compounds with antioxidant and anti-inflammatory properties. StudiesTrusted Source suggest that it’s safe for most adults to drink up to 3 cups (710 ml) of coffee per day — or up to 400 mg of caffeine. During pregnancy, people should consume no more than 200 mg of caffeine per day, as caffeine may increase the risk of complications. Drink your coffee black or with dairy or plant-based milk. Try to avoid sugar or use it sparingly, as too much sugar is linked to health risks. The caffeine in coffee promotes alertness and enhances physical and mental performance.