Nuun

Frequently Asked Questions

• When should I choose Nuun Sport vs Nuun Zero Sugar vs Nuun Instant?

  Choose Nuun Sport for workouts and sweat replacement—one effervescent tablet dissolves in 16 oz of water and delivers about 10 calories, ~1 g sugar, and roughly 300 mg sodium with a five‑electrolyte profile. Nuun Zero Sugar (Daily Hydration) is best for everyday low‑calorie electrolyte support without sugar. Use Nuun Instant when you need quick rehydration with added carbohydrates and vitamins for faster absorption during long or high‑intensity sessions.
• How much caffeine is in Nuun Energy and which Nuun flavors contain caffeine?

  Nuun Energy contains 80 mg of caffeine per serving, while select Nuun Sport and Nuun Vitamins flavors include about 40 mg of green tea–derived caffeine per serving. Choose the 40 mg options for a moderate lift during workouts and Nuun Energy for a stronger boost, and avoid caffeinated varieties close to bedtime.
• How does Nuun Sport compare to Nuun Instant in absorption and use during activity?

  Nuun Sport is an effervescent tablet designed for sustained electrolyte replacement with minimal carbs, making it ideal for steady workouts and everyday sweat loss. Nuun Instant is a powdered single‑serve formulated with carbohydrates and vitamins (like vitamin C and B12) to support faster fluid absorption and quicker refueling during prolonged endurance efforts.
• How do I prepare Nuun tablets and are there options for immune support or sleep recovery?

  Drop one effervescent tablet into 16 oz (about 500 mL) of water and let it fully dissolve; Instant sachets mix quickly for single‑serve convenience. For immune support, use Nuun Immunity/Immunity3 (elderberry and antioxidants) which can be enjoyed hot or cold, and for sleep recovery Nuun Rest contains tart cherry to support nighttime relaxation.