Methylxanthine Content of Various Types of Chocolate

Cocoa powder

28.5 mg/g (807 mg/oz)

Unsweetened (baker's) chocolate

15.5 mg/g (440 mg/oz)

Semisweet and sweet dark chocolate

5.3–5.6 mg/g (150–160 mg/oz)

Milk chocolate

2.3 mg/g (64 mg/oz)

Cocoa bean hulls^a

9 mg/g (255 mg/oz)

White chocolate^b

0.04 mg/g (1.1 mg/oz)