Diet Pepsi Now Aspartame Free. 0 calories per 12 fl oz serving. Pepsi-Cola®. Sugar free. Very low sodium. 35mg or less per 240 ml (8 fl oz). Caffeine content: 34 mg/12 fl oz. Please recycle. Bottled under the authority of Pepsico, Inc. Diet Pepsi, Pepsi-Cola and the Pepsi Globe are registered trademarks of PepsiCo, Inc. Product questions 1-800-433-2652. www.pepsi.com.