Meet the Fast Journal

How are you feeling? It’s a question that’s important to reflect on during a fast, especially extended ones. That’s why we created the Fast Journal—a place where you can easily track the highs, lows, and everything in between throughout your fast. Add notes and mood changes to create an easy-to-view mood graph at the end […]

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The Spooky Side of Sugar

Most of our holidays in America are built around sugar. Birthday cake, Christmas cookies, spiced cider, you name it—a celebration treat is likely a sugary one. On October 31st, we literally send our children out into the night to demand sugar from strangers (while parents indulge on the leftovers). That’s why this year, we’re encouraging […]

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Will it Break My Fast?

When considering whether a food, beverage, or supplement might break a fast, it’s important to first consider what your goals are around fasting. The three most common reasons people fast are for weight loss/metabolic health, gut rest, or longevity. Let’s look at a few items through that lens. Coffee Coffee has minimal calories, but what […]

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Does Coffee Break Your Fast?

When considering whether a food, beverage, or supplement might break a fast, it’s important to first consider what your goals are around fasting. The three most common reasons people fast are for weight loss/metabolic health, gut rest, or longevity. Let’s take a look at coffee—the beverage we see the most questions about—through that lens. […]

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The Physiology of Fasting

The simple truth is every body responds to fasting a little differently. Genetics, health, lifestyle…all these things play a part. But for a healthy person embarking on a fasting journey, there’s a general timeline of events—a predictable set of metabolic responses as your fast stretches from hours into days. We’re breaking down that timeline here. […]

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35 Million Fasts and Counting

From zero to 35 million fasts completed—we couldn’t be more proud of the Zero crew for hitting this huge milestone with us. To celebrate the users who got us here, we’ve rolled up some other interesting stats. From where in the world you’re fasting to which fast protocol is your favorite, check out more below. […]

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When to Eat

The big debate for decades has mostly been around what we should be eating — vegan vs. high carb, low fat vs. Mediterranean, and so on — but arguably, an equally important question is when should we be eating? Does the time of day we eat have an impact on our health? How about the frequency of meals and […]

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