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Yes, green tea contains caffeine, usually 20–50 mg per 8-ounce cup depending on leaves and brew.

Yes, green juice breaks a fasting window because the calories and sugars move your body out of the fasted state.

Yes, McDonald’s Frappé drinks contain coffee; the base includes coffee extract and delivers moderate caffeine depending on size and flavor.

Yes. A latte uses steamed, frothed milk with a thin microfoam layer over espresso.

No, a flat white usually sits mid-range for caffeine, with about 130–195 mg depending on size and shots.

Yes—hot toddy recipes can include tea, though the classic hot toddy uses hot water with whiskey, lemon, and honey.

Yes, a flat white often matches or beats a latte on espresso, but recipes and sizes vary by chain and cup.

A flat white usually has more milk than a cappuccino because it’s steamed with thin microfoam instead of a thick foam cap.

Yes—at many chains a flat white packs more caffeine than a cappuccino, because it’s usually pulled with extra shots or ristretto shots.

Yes—any standard flat white contains milk calories, so a flat white breaks an intermittent fast.