Research shows that milk is one of the best beverages for hydration, even better than water or sports drinks. Researchers credit milk's natural electrolytes, carbohydrates, and protein for its effectiveness.
For example, milk was found to be even more hydrating than plain water because it contains the sugar lactose, some protein and some fat, all of which help to slow the emptying of fluid from the stomach and keep hydration happening over a longer period.
Yes, Milk Is Hydrating, According to Research
In both studies, researchers found that milk is associated with a lower urine output (peeing less frequently and therefore experiencing less fluid loss) compared to water.
To meet your fluid needs throughout the day, choose water most often. Remember that other fluids like milk, coffee, tea and juice also count towards your daily fluid intake.
The fastest way to hydrate is with an oral rehydration solution. These products are packed with electrolytes which are minerals found in your body that balance fluid levels and maintain optimal hydration. While you can hydrate fast with regular water, focus on electrolytes.
Best Overall: Gatorade
The levels of electrolytes (sodium and potassium) are moderate and sensible with 160 mg of sodium and 45mg of potassium per 12 fluid ounce serving. You can also find Gatorade varieties with higher sodium, zero sugar or no calories depending on your needs.
Dairy milk can absolutely be a nutritious part of any hydration and healthy diet plan. It's important to note, however, that given its calorie content and high satiety, it should not be used to replace water by any means.
Beverages containing alcohol or caffeine aren't recommended for optimal hydration. These fluids tend to pull water from the body and promote dehydration. Fruit juice and fruit drinks may have too many carbohydrates, too little sodium and they may upset your stomach.
In the United-States, the national dietary guidelines recommend that adults should drink three cups or 732 mL/d of milk [1].
In general, however, it usually takes about two hours for your body to rehydrate fully after drinking a significant amount of water. As for how you should rehydrate, water is the best choice. Sports drinks, such as Gatorade, can be helpful for athletes who need to replenish electrolytes.
Research shows that milk is one of the best beverages for hydration, even better than water or sports drinks. Researchers credit milk's natural electrolytes, carbohydrates, and protein for its effectiveness.
If you can't get a pre-mixed rehydration solution, don't try to make one yourself. Instead, replace lost fluids naturally with sips of water, fruit juice, crushed fruit mixed with water, or salty soups or broths.
You might have an electrolyte imbalance: Electrolyte imbalances are one of the most common reasons you might feel dehydrated even after drinking tons of water: “Sometimes if we drink a lot of water but we don't take in enough fruits and vegetables, our electrolytes—sodium, potassium, magnesium, chloride, etc.
If you're feeling dehydrated or run down, a vitamin C drip could be just the thing you need to feel energetic and well again. If you're concerned about getting an overdose of vitamin C, don't worry. This vitamin is water-soluble, which means any excess beyond what your body needs is excreted with your urine.
The person loses consciousness at any time. There is any other change in the person's alertness (for example, confusion or seizures). The person has a fever over 102°F (38.8°C). You notice symptoms of heatstroke (such as rapid pulse or rapid breathing).