Diet Pepsi UK, AU, NZ
Diet Pepsi has a different formulation in the UK, Australia, New Zealand, and other markets and thus has a lower caffeine content there.
It contains 42.6mg per 12 ounce (355ml) can.
Ingredients in Diet Pepsi UK, AU, NZ
Sugar content: Contains no sugar.Compare Sugar Content
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Diet Pepsi UK, AU, NZ contains 3.55 mgs of caffeine per fluid ounce (11.99mg/100 ml).