Intermittent Fasting: A Complete Guide to Schedules, Food, and Safety
Intermittent fasting is an eating pattern that alternates between periods of eating and periods without food. It focuses mainly on when you eat, but t...
Intermittent Fasting Blog & Guides
Evidence-based guides, plans, and answers — reviewed by registered dietitians.
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Classification of Food: How to Classify Foods for Healthier Choices
Food choices get easier when you stop asking whether a food is simply "good" or "bad" and start asking a more practical question: how close is this fo...
What happens to your body during prolonged fasting?
During prolonged fasting, your body gradually shifts from using recently eaten food to stored glycogen, fat-derived fuel, and ketone bodies. Some cell...
What Are Ultra-Processed Foods, and Why Limit Them?
"Ultra-processed food" gets used as a catch-all insult for anything that comes in a package, but it has a fairly specific meaning. It does not describ...
What to Do About Dizziness While Fasting
Feeling dizzy during a fast is usually a sign your body needs something simple: sugar, fluid, or salt, or you just stood up too fast. Stop what you ar...
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