Diet Coke®. 0 calories per bottle. 10 fl oz (296 ml). Caffeine content: 38 mg/10 fl oz. Very low sodium. Consumer information. Diet Coca-Cola®. Please recycle. No refill. Bottled by a Member of The Coca-Cola Bottlers Association. www.dietcoke.com. Call 1-800-438-2653. ©2011 The Coca-Cola Company.