When it comes to hydration , water seems like the obvious choice. But is it truly the most hydrating beverage? According to a recent scientific study, milk scores higher on the hydration index than water.

Milk vs. water for hydration

The surprising finding was discovered via a study that compared hydration from different beverages by analyzing fluid retention levels in the hours after drinking. Shockingly, both whole cow’s milk and skim milk were found to be among the most hydrating beverages—even surpassing mineral water in some conditions.

How is this possible? The explanation can be found in the nutritional composition of milk . “Milk contains natural sugars, proteins, and fats,” the study notes. “These nutrients slow the emptying of the stomach, helping the body retain fluids

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