Will this break a fast?

James Mechen Updated by James Mechen

No. SUSTAIN contains:

  • 0 kcal
  • 0 g sugar
  • No protein or fat

It’s suitable for intermittent fasting, keto, and low-carb lifestyles where electrolyte support is often needed.

How did we do?

Is SUSTAIN safe for daily use?

Why two types of magnesium?

Chat with us