Does Coriander Water Break a Fast?

No, strained, unsweetened coriander water is unlikely to meaningfully break a typical intermittent fast because steeping coriander seeds transfers only a small amount of energy into the water. That is a practical judgment, not a result proven in a fasting trial. For a strict water-only fast, coriander water does not qualify as plain water.

Does coriander water break a fast?

The answer depends on what your fast allows. Many intermittent fasting routines permit unsweetened, very-low-calorie drinks during the fasting window. A lightly steeped and strained infusion of coriander seeds is generally consistent with that approach.

A strict water-only fast has a different rule: drink plain water, not water flavored with coriander seeds. Likewise, if your goal is to consume absolutely no calories, there is no measurement here that establishes an infusion contains zero.

Preparation matters. Water strained from whole coriander seeds is different from a drink containing ground coriander seeds, sugar, honey or other ingredients. Drinking the seeds or adding caloric ingredients provides more energy than drinking the strained infusion alone.

There is no established calorie threshold that defines a broken fast for every purpose. Decide which rule applies to your fast rather than assuming that a drink accepted in one routine is acceptable in all of them.

How many calories are in coriander water, and does it affect insulin?

Steeped infused water is generally very low in calories, often under 10 kcal per glass. That is a general estimate for infused water, not a measured calorie count for a particular coriander seed preparation. The amount extracted can vary with the quantity of coriander seeds, steeping time and whether particles remain in the drink.

Do not count all the calories in the coriander seeds as calories in the strained water: most of the seeds remain behind. On the other hand, straining does not prove that nothing containing energy has dissolved into the water.

The insulin response is less certain. A 1999 study in mice and cultured cells found insulin-related effects from a coriander extract, including insulin release from cultured animal cells. It did not test people drinking coriander water during a fast.

A study of coriander seed extract in rats also reported changes in glucose and, with repeated dosing, insulin. These animal and laboratory findings do not establish how a light infusion of coriander seeds affects insulin in humans, so it would be misleading to promise either an insulin response or no response.

Does coriander water fit intermittent fasting, a water fast or an autophagy fast?

Intermittent fasting

For a routine that allows unsweetened, very-low-calorie drinks, strained coriander water is unlikely to make a meaningful difference to the fast. For example, a 16-hour fasting window followed by an 8-hour eating window is one common intermittent fasting schedule. An intermittent fasting timer can help you track the window.

Keep the infusion unsweetened and avoid drinking the coriander seeds. If your chosen program has stricter rules, follow those rules instead of relying on a general definition of fasting.

Strict water fasting

Coriander water does not meet a plain-water-only rule, even if its calorie contribution is small. Choose plain water if the distinction matters to you; the issue is what the fast permits, not a proven harmful effect of coriander seeds.

For a blood test, procedure or other medically directed fast, follow the instructions from your care team. Do not assume flavored water is permitted, and ask them if the instructions are unclear.

Fasting for autophagy

Autophagy is a normal cellular recycling process, but there is no evidence here showing whether coriander water changes it during a human fast. The animal and cell studies of coriander extracts cannot establish an autophagy effect from drinking an infusion.

There is also no reliable way to use the taste or estimated calories of coriander water to determine whether autophagy is occurring. If you want to follow a strict water-only rule for this goal, choose plain water rather than claiming the infusion has a known effect on autophagy.

How to prepare a simple infusion

For an unsweetened drink, use:

• 1 litre water (about 4¼ US cups)
• 5 mL whole coriander seeds (1 teaspoon)

1. Add the coriander seeds to the water in a clean, covered container.
2. Refrigerate for 2–4 hours to steep.
3. Strain out the coriander seeds and keep the water refrigerated.
4. Drink within 24 hours for best flavor. Discard it sooner if it becomes cloudy, slimy or sour-smelling.

Whole coriander seeds are easier to strain out than powder. Do not add sweeteners or consume the seeds if you want to keep the drink as low in calories as practical.

People with diabetes, especially those taking insulin or other glucose-lowering medication, should discuss fasting with their clinician. Anyone who is pregnant, has a history of an eating disorder or has a medical condition that makes fasting risky should also seek advice before fasting. If you feel faint or develop symptoms such as shakiness, sweating or confusion, stop fasting and seek medical advice; fainting or severe confusion needs urgent medical attention.