What are the allowed drinks during intermittent fasting?

The allowed drinks during intermittent fasting are mainly zero-calorie or very low-calorie options, including water, black coffee, and unsweetened teas such as green, black, or herbal tea. Diluted apple cider vinegar and a small squeeze of lemon or lime in water are also suitable additions for most people. These drinks during intermittent fasting tend not to trigger a significant insulin response, but individual responses may vary.

Will 20 calories break a fast?

20 calories may break a fast, depending on the source of those calories. Even a small amount can trigger an insulin response for some people, which may interrupt a fast or affect ketosis ( 19 ). To stay on track, many people stick to zero-calorie options or keep additions to minimal amounts, such as a little apple cider vinegar or a squeeze of lemon juice. Individual responses may vary.

What are the best zero-calorie drinks for intermittent fasting?

The best zero-calorie drinks for intermittent fasting are plain water in still, sparkling, or seltzer form. Black coffee and unsweetened tea have negligible calories and also tend to work well for most people. With any intermittent fasting zero-calorie drinks, it’s worth checking labels for hidden sweeteners or added flavors. These zero-calorie drinks intermittent fasting staples help keep your fast simple and your hydration on track.

Will 50 calories break a fast?

50 calories may break a fast, as it’s a more significant amount than trace additions. Depending on the source, these calories could trigger an insulin response and interrupt your fasting routine, although different fasts will accept very small amounts of calories during the fasting window. Most people aim to avoid calorie-containing drinks during fasting hours to keep things consistent. If you want more variety, intermittent-fasting-allowed drinks with zero or minimal calories tend to be the more suitable choice.

Does coconut water break a fast?

Yes, coconut water tends to break a fast as it contains natural sugars and carbohydrates that may raise blood sugar and trigger an insulin response ( 20 ). If concerns about coconut water breaking a fast have come up for you, it’s generally best to save it for your eating window. Individual responses may vary, but most people following a strict fast choose to avoid it during fasting hours.