Chamomile tea does not break a fast. A cup brewed with water has about 2 calories and no caffeine, far too little to affect insulin, ketosis or weight loss. Honey, sugar or milk are what turn it into food.
| Calories | ~2 kcal per cup |
|---|---|
| Breaks a weight-loss fast? | No |
| Breaks ketosis? | No |
| Breaks autophagy? | Unlikely |
| Insulin impact | Negligible |
Dried chamomile flowers release flavor and plant compounds into hot water, while the plant matter stays in the bag. USDA data put brewed chamomile at about 1 calorie per 100 ml, roughly 2 per cup. That cannot raise insulin or end the fasted state, so it fits any fasting goal, including a strict fast with only water and tea.
Chamomile is a popular evening drink, which suits fasting windows that start after dinner. Evidence that it improves sleep is thin, though a warm, caffeine-free cup can be a calming routine. People allergic to ragweed, daisies or marigolds are more likely to react to chamomile, and it may interact with the blood thinner warfarin. Bedtime blends built on chamomile are usually fine; check the label for added sugar or honey granules.
Drink as many cups as you like during the fast. If you sip it at night, have the last cup an hour or so before bed so you are not up to use the bathroom.
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