Very Low Sodium: 35 mg Or less per 240 ml (8 fl oz). Refreshing. Uplifting. Hydrating? It's true. Research shows that all beverages contribute to proper hydration. That means whether it's your first can of the day or your afternoon pick-me-up, Diet Coke Plus helps you stay hydrated all day long. So stick with the Diet Coke Plus taste you love. Your body will thank you for it.