Does coconut water break a fast?

Yes, coconut water breaks a strict metabolic fast. A standard 8-ounce (240ml) serving of pure coconut water contains roughly 45 to 60 calories, along with 6 to 10 grams of natural carbohydrates and sugars.

Consuming calories and carbohydrates triggers an insulin response in your body, which pauses ketosis and halts autophagic cellular repair processes. If you are practicing intermittent fasting for weight loss, metabolic health, or cellular repair, stick to zero-calorie options like plain water, black coffee, or unsweetened herbal tea during your fasting window. Save coconut water for your eating window as a nutrient-dense hydration beverage.