Will it break my fast?
Black coffee, plain tea, water, and lemon water generally do not break a fast. Milk, BCAAs, bone broth, and alcohol do. Sugar-free gum, diet soda, and electrolytes depend on formulation and your fasting goal.
- Black coffeeDoes not break
- Plain teaDoes not break
- WaterDoes not break
- Sparkling waterDoes not break
- Sugar-free gumDepends
- Diet sodaDepends
- MilkBreaks fast
- Lemon waterDoes not break
- Apple cider vinegarDoes not break
- ElectrolytesDepends
- BCAAs (branched-chain amino acids)Breaks fast
- CreatineDoes not break
- SteviaDepends
- Artificial sweetenersDepends
- Bone brothBreaks fast
- Collagen peptidesBreaks fast
- Vitamins and supplementsDepends
- AlcoholBreaks fast
- ToothpasteDoes not break
Showing 19 of 19 items
Search or filter 19 common foods and drinks to see whether they break your fast — with calorie counts, insulin reasoning, and goal-specific nuance (weight loss vs autophagy vs metabolic health).
- Free core
- Source-backed
- Not medical advice
What can you drink while fasting?
For most weight-loss and metabolic goals, zero- or near-zero-calorie drinks are the usual choice during the fasting window. Plain water is always the strictest option; black coffee and unsweetened tea are widely used. Formulation matters for diet soda, electrolytes, and sweeteners — check the item verdicts below.
Common drinks while fasting: