Black tea is made from fully oxidized tea leaves and is the most common tea in Western countries, drunk plain or with milk. A 240 ml cup has about 2 kcal and is high in manganese, with roughly 50 mg of caffeine, about half as much as brewed coffee. Milk and sugar change the numbers: 30 ml of whole milk adds about 19 kcal and each teaspoon of sugar about 16 kcal.