Can You Do a 16:8 Fast Every Day?

Yes, you can! Daily 16:8 time-restricted feeding (TRF) is safe to practice as long as you are acquiring the energy and nutrition that you need within your eating window; 8-hours is typically more than enough time to consume your daily energy/nutrition requirements. Exceptions apply to those who require longer eating windows in order to comfortably…

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Does Exercise Amplify the Benefits of Fasting?

How does exercise impact the progression of a fast? Asked By: Elliot K. The more you exercise, the more fuel you burn, and different types of exercise prioritize different fuels. So the volume and intensity of your training will definitely impact the speed at which you move through your Fasting Zones.  The progression of fast…

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How to Manage Side Effects of Fasting

Do side effects of fasting (headache, moodiness, etc) become more manageable over time? Asked By: Cheyenne L. Yes! In the beginning stages, fasting can certainly present challenges. The most common side effects of fasting are often the result of electrolyte deficiencies and can be easily remedied and prevented by staying hydrated and adding in a…

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What Is a “Fat Fast” and Is it Healthy?

What is a “Fat Fast” and For What Health Goals Might That Be Appropriate? Asked By: Sharon F. A “Fat Fast” is not a true fast as you can still consume Calories, but those Calories come primarily from fat. Essentially, it’s more of an all-fat diet, which also happens to be ketogenic, meaning it supports…

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Fasting, COVID, and Vaccines: Everything you Need to Know

By: Rich LaFountain A lot of people have been asking us about how fasting might intersect with COVID-19 risk, infection, and the vaccine. In this brief article we’re hoping to provide some evidence-based clarity so you can make informed decisions for your fasting practice.  Fasting and COVID-19 Infection The COVID-19 pandemic has had immense impact…

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Is it Necessary to Reach Ketosis to Lose Weight?

If reaching ketosis while fasting is a proxy for fat-burning, we totally understand why you might think you need to be in ketosis to lose weight. The good news is: you don’t! Ketosis is certainly a product of accelerated fat burning, however, we still burn fat in the absence of ketones. Reaching ketosis is not…

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Ask Zero with Dr. Peter Attia

Our first episode of Ask Zero is now live! This month, Dr. Peter Attia addresses top fasting questions from Zero Plus members like: types of fasts that are most likely to promote autophagy, the best times to exercise during a fast, and the science that shaped Fasting Zones in the app. Watch a preview where…

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Fasting and COVID-19 AMA

A note from our CEO Knowledge is power—especially in times of uncertainty. And while updates are constantly emerging related to COVID-19, I want to share everything our team has learned so far with you. Which is why I’m sitting down with our Chief Medical Officer, Dr. Peter Attia, to answer questions related to your fasting…

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