Another goal: Strict clean fast Fat loss Ketosis Gut rest

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What breaks a fast — your fast-safe list

Fasting for: Autophagy

No human study has established a calorie or protein threshold, so most of this column honestly reads "nobody knows".

Allowed — 9 Nothing to burn, or far too little to matter for this goal.
Think about it — 95 Either the studies disagree, or nobody has run one. The checker says which.
Breaks it — 24 Enough energy, protein, sugar or gut activity to end this fast.

Servings are the ones people actually use — a splash, a teaspoon, one packet — from published USDA FoodData Central figures. Every verdict is computed from those numbers, or from a named mechanism they cannot show. None of them is typed by hand. This column is mostly "think about it" for an honest reason: no human study has established a calorie or protein threshold for autophagy, so almost nothing here can be sorted with confidence.

Medication is not on this sheet. A tablet carries no meaningful calories and does not break a fast; the question is whether the medicine needs food, and if it does, the food wins. Never skip, delay or split a dose to protect a fast. Fasting before blood work is stricter than any goal here — usually water only for 8 to 12 hours. Follow your lab's instructions.

getfasted.app/tools/does-it-break-a-fast — the full checker, with the reason behind every line. Not medical advice. Nothing on this sheet is medically reviewed; it cites its sources.