During intermittent fasting, it is important to avoid foods and drinks that will spike your blood glucose levels and trigger an insulin response. Water and other zero-calorie beverages are generally fine during this period. Here are some beverages that you can drink while intermittent fasting:

• Water: Water is the best drink that you can take during intermittent fasting to keep you hydrated. It is completely calorie-free, so it will not break your fast.

• Teas: Unsweetened tea is a great option to drink during your fast. You can also try herbal teas like chamomile, peppermint, or ginger tea.

• Coffee: Black coffee is generally considered okay to drink during intermittent fasting. However, some people find that adding small amounts of milk or fat can curb hunger.

• Apple cider vinegar: Drinking diluted apple cider vinegar mixed into water can help you stay hydrated and prevent cravings during a fast.

• Flavored water: Flavored water is also a good option, as long as it is calorie-free.

It is important to avoid drinks that contain calories, as they will break your fast. Here are some drinks that you should avoid during your fast:

• Alcohol: Alcohol should not be consumed during fasting, as it can intensify its effects when consumed on an empty stomach. Alcohol is also a source of calories, which can break your fast and stimulate hunger and cravings.

• Diet sodas: Diet sodas contain artificial sweeteners that can cause an insulin response and break your fast.

• Coconut water: Coconut water contains carbohydrates, which can break your fast. It is best to save it for your eating window.

• Milk: Milk contains calories, so it should be avoided during fasting. However, some people find that small amounts of milk or cream in their coffee can help curb hunger.

Overall, it is important to stay hydrated during intermittent fasting and to avoid drinks that contain calories. Drinking water, unsweetened tea, black coffee, apple cider vinegar, and flavored water are all good options during your fasting period.