Fasting Teas 101: What they are, possible benefits, and who should be cautious

# What are fasting teas?

Fasting teas are unsweetened teas that people drink while they are in a fasting window. The defining rule is no added sugar, milk, or other calorie-containing ingredients. Because plain tea and black coffee have very few calories, they generally won't interrupt a fast and are widely accepted as fasting-friendly beverages.

# Why people use them during intermittent fasting

Intermittent fasting alternates eating periods with fasting periods. Popular patterns include time-restricted feeding (for example, eating in an 8-hour window), alternate-day fasting, and the 5:2 method. People who fast often want something warm and flavorful to sip for comfort or to reduce the urge to snack. Tea fills that role without adding meaningful calories.

# Practical benefits reported and supported by research

• Reduces calorie intake: Swapping sweetened drinks or caloric beverages for plain tea cuts calories without requiring willpower to avoid flavored beverages.

• Adds hydration: Water should be primary during fasts, but tea contributes to fluid intake and can make longer fasts more tolerable.

• Improves nighttime routine: Herbal options like chamomile or jasmine are used to promote relaxation and sleep. Research on jasmine suggests scent can have a mild sedative effect and improve mood—making a decaffeinated herbal tea a reasonable replacement for late-night snacking.

# Tea selection and timing

• Caffeinated teas (black, green): Useful in the morning or during the day to blunt hunger and provide alertness. Avoid late in the day if you want to preserve sleep quality.

• Herbal teas (ginger, peppermint): Useful for stomach upset and nausea, and can be caffeine-free options for evening use.

• Chamomile, jasmine (decaffeinated): Better choices at night when the goal is relaxation and avoiding stimulant effects.

# Safety and who should be cautious

Intermittent fasting and fasting teas are not suitable for everyone. People who should seek medical advice before trying fasting include those with a history of eating disorders, pregnant or breastfeeding individuals, and people with seizure disorders. People with diabetes need medical guidance because fasting affects blood sugar control.

# Bottom line

Fasting teas are a low-calorie, low-risk tool many people use to make fasting easier. Plain tea can reduce calories compared with sweetened drinks, add hydration, and address minor digestive issues or sleep routines depending on the tea choice. Before using fasting or making changes to diet routines, get personalized medical advice if you have health conditions or are taking medications.