While pure water remains the gold standard for hydration, it isn't the only way to meet your fluid needs. According to "Verywell Health," several warm beverages consist mostly of water and can provide effective hydration when consumed in moderation.
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Here are four warm drinks that help maintain body hydration:
1. Black or Green Tea
Teas containing caffeine—such as black, green, white, and oolong—are derived from the Camellia sinensis plant. Due to their high water content, they contribute significantly to daily fluid requirements.
While caffeine is a known diuretic, research indicates that moderate tea consumption does not cause greater fluid loss than water. A controlled trial comparing black tea to water found no significant differences in hydration markers or fluid balance.
2. Herbal Tea
Herbal infusions like peppermint, ginger, and chamomile are naturally caffeine-free. Because they are made from the leaves, flowers, or roots of various plants rather than Camellia sinensis, they behave almost identically to water regarding hydration. Evidence suggests that low-caffeine or caffeine-free herbal teas are particularly effective at restoring fluid balance after mild dehydration.
3. Coffee
Black coffee is primarily water. While high doses of caffeine (around 537 mg or 4–5 strong cups) may increase fluid loss, moderate amounts (around 269 mg or 2–3 cups) do not negatively impact fluid balance for regular drinkers. Studies comparing moderate coffee intake to water consumption found no significant differences in blood or urine hydration markers.
4. Warm Milk
Milk is mostly water and possesses unique properties that may help the body retain fluids longer than water does. According to the Beverage Hydration Index—a scale measuring how long a drink remains in the body—both whole and skim milk scored higher than water. This is attributed to:
Electrolytes: Sodium and potassium help the body retain fluid.
Nutrients: Proteins and carbohydrates slow down stomach emptying, resulting in a more sustained release of hydration.
