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Yes, coffee before a fasting blood test can skew results, so stick to plain water unless your care team says otherwise.

Yes—during intermittent fasting you can drink black coffee and plain tea; for fasting blood tests, stick to water only.

No, coconut water breaks most fasting plans due to calories and sugars; it only fits modified fasts that allow limited electrolytes.

No, coconut water breaks an intermittent fast due to calories and sugars—save it for your eating window.

No, coconut oil breaks a strict intermittent fast; some plans allow small fat-only doses, but that isn’t a true fasting period.

No, eating chia seeds breaks a fasting window, since they add calories and nutrients.

No, chicken broth breaks a blood-test fast—stick to plain water only unless your clinician says otherwise.

No, chicken broth has calories and protein, so it breaks a strict fasting window; it fits only in modified or “broth-allowed” fasts.

Yes, plain chamomile tea fits most fasting windows, but medical or religious fasts may allow only water—check your rules.

Yes, many programs allow sugar-free gum up to 2 hours before anesthesia, but follow your hospital’s written fasting instructions.