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Does cucumber break a fast?

8
/ 100
Eating window

Low calorie, but still food

10-20 kcal

Use during the eating windowhigh confidenceClean-fasting principle
Decision

Use during the eating window. Cucumber is very low calorie, but eating it still starts the eating window.

Reason

Clean fasting is not only about high calories; it is about not eating during the fasting window.

Evidence

Cucumber has low but measurable calories and carbohydrates in nutrition data.

How we calculate this value

Base tier: 10/100 for "Eating window". Item adjustment: -2 points for calories, nutrient signal, product variability, and safety caution. Final Fast Score: 8/100.

What to do

Save cucumber for the eating window or use it as a gentle first food.

Related reading
Best foods to break a fast
Check another item

The Fast Score is an editorial estimate of clean-fast strictness, not medical advice. Goals vary — if you fast for glucose, appetite, or medical reasons, follow your clinician.