fasting drink

How we launched a Fasting / Keto Drink

In 2019, two beverage entrepreneurs planned a trip to Haiti to build clean water filter systems in local elementary schools. The trip was abruptly canceled due to civil unrest. As the country of Haiti suffered, the two entrepreneurs thought about the people they were supposed to help on that trip. In solidarity, the duo decided to do a five-day extended fast.

The challenges, the achievements, and the emotional rollercoaster that occurred during that fast led (us) to what is now the fasting hydration / keto drink FAST:RX.  

In this blog and on our social, we'll share stories from that very first fast, and the many since. We want to share what we've learned, and help you fast easier because we know firsthand how hard it is.  

Our mission is to be a fasting aid for you during your fasting journey because we believe that fasting & keto shouldn't be SO hard. You're a superhuman, and we know you can get through this. We just want to offer some delicious fasting help. 

We're going to fuel your fast, together!

 

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Frequently Asked Questions

Does FAST:RX break a fast? 

No — FAST:RX is completely fasting-safe. It contains zero sugar, zero calories, and no ingredients that trigger an insulin response,
so you can drink it throughout your entire fasting window without interrupting
fat burning or ketosis.




What can I drink during intermittent fasting? 

Water, black coffee, plain tea, and fasting-safe electrolyte drinks are all compatible with intermittent fasting. FAST:RX is
specifically formulated for fasting — it replenishes your electrolytes without
any sugar or calories that would break your fast.

Why do I feel tired and hungry while fasting? 

Fatigue and hunger during fasting are most often caused by electrolyte depletion, not true caloric need. When sodium, magnesium, and potassium drop, your body sends hunger and fatigue signals. Replenishing electrolytes with FAST:RX can dramatically reduce these symptoms without breaking your fast.

Do electrolytes break a fast? 

No — electrolytes in their pure form contain no calories and do not trigger insulin. FAST:RX delivers sodium, potassium, and
magnesium in a completely fasting-safe formula, making it the ideal companion
for any fasting protocol.

What is the best electrolyte drink for fasting? 

The best electrolyte drink for fasting is one with no sugar, no artificial sweeteners, and no calories — formulated specifically for
the fasting state. FAST:RX was built from the ground up for fasters, with the
exact electrolyte balance your body needs during a fasting window.

How do I stop feeling dizzy when fasting? 

Dizziness during fasting is almost always a sign of low sodium or magnesium. Drinking plain water can actually make this worse by
further diluting your electrolytes. The fix is to add electrolytes — FAST:RX is
designed to restore balance quickly so you can get through your fast feeling
clear and energized.

Is intermittent fasting safe? 

Intermittent fasting is safe for most healthy adults and is backed by a growing body of research showing benefits for metabolic
health, weight management, and longevity. Always consult your doctor if you
have underlying health conditions. Supporting your fast with proper hydration
and electrolytes like FAST:RX makes it safer and more sustainable.