Intermittent Fasting (16:8)
An eating pattern that cycles between 16 hours of fasting and an 8-hour eating window. Not a diet per se — it dictates when you eat, not what you eat.

Goal of the plan
Source best-for note: Weight loss, simplicity, metabolic health, autophagy.
Who it is for
The source category is Time-Restricted, with difficulty marked Easy.
Example meals and foods
The source plan does not prescribe a fixed macro split.
Meal timing: All food consumed within 8-hour window (e.g., 12pm-8pm).
- Any whole foods during eating window
- Water during fasting
- Black coffee
- Unsweetened tea
- Focus on nutrient-dense meals
Foods to limit or adapt
- Anything with calories during fasting window
- Excessive junk during eating window
Grocery guidance
Suggested additionBuild a simple list around the foods you already enjoy, then add one or two easy repeatable meals before trying to overhaul everything.
Hydration guidance
Suggested additionKeep water available through the day and adjust fluids around heat, sweat rate, long runs, and higher-fiber meals.
Flexibility and sustainability
Suggested additionMay not suit people with blood sugar issues. Can be combined with any diet style. Skip breakfast approach is most common.
Individual nutrition note
Suggested additionNutrition advice should be adapted to the individual. Consider medical history, medications, preferences, budget, culture, and support from a qualified clinician or dietitian when needed.


