The Nectar Hydro tablets contain 5-ion electrolytes and virtually no calories to help you stay as hydrated as possible. The Light, refreshing taste makes them easy and pleasant to drink. Key Features: Tablets create a hypotonic solution with 5-ion electrolytes to help keep you hydrated. Virtually calorie free (1.3 - 2 calories per 100ml). Light, refreshing and pleasant taste. Each tube contains 20 tablets. Works perfectly alongside other Nectar energy products.