Fasting, health & updates from Zero
Evidence-based guidance on fasting, protein and metabolic health from Zero’s clinicians, scientists and team.
Latest
All articles →What BMI Can and Cannot Tell You About Your Health
The number on her chart said “overweight.” The patient sitting across from me was a former Division I athlete. Resting heart rate in the low 50s, glucose in the optimal range, body…
Quick Update: What’s New in Zero?
Back in January, I wrote a post about the several updates we made to Zero Plus. I promised to keep the updates coming as we build, and a lot has been delivered…
What Fasting and GLP-1s Have In Common
We recently surveyed a subset of our community, and what we found is what we’ve always suspected: Zero users don’t all look the same. Some of you are deep in a fasting…
Team Android, This One’s for You
If you’ve been using Zero on Android for a while, thank you for sticking with us. We know it hasn’t always been easy. iOS got features first, and some features never made…
Are you losing fat . . . or muscle?
It’s a new year! And for many people, that brings renewed motivation to improve their health, often starting with weight loss. As a physician who practices obesity and lifestyle medicine, I see…
Quick Update – We’re Hard at Work on Zero Plus Improvements
Since launching the new Zero Plus earlier this month, the team has been heads-down making enhancements based on your feedback, as well as working on things we couldn’t squeeze into our initial…
Most asked questions
Does coffee break my fast?
Black coffee doesn’t break a fast, and it may even add to the fat-burning and appetite-curbing effects of fasting. Sugar, milk and creamer are what change the answer.
Read the full answer →Do sweeteners break my fast?
It depends on the sweetener: whether it raises blood glucose and insulin, wakes up your digestion, or switches on the growth pathways that stop autophagy.
Read the full answer →Does diet soda break my fast?
A truly calorie-free diet soda won’t end your fast, but the sweet taste can trigger an insulin response that slows fat burning and makes you hungrier. Water, sparkling water, black coffee and herbal tea are better choices.
Read the full answer →Can I take supplements while fasting?
It stands to reason that if you’re taking in fewer calories by fasting, you are also probably taking in fewer vitamins and nutrients.
Read the full answer →How do I know if something will break my fast?
Start with why you fast: weight loss and metabolic health, gut rest, or longevity. The same food, drink or supplement can be fine for one goal and not for another.
Read the full answer →