Your favorite cold-weather breakfast might be a simple way to add to your daily hydration needs. Oatmeal requires at least a cup of water or milk to cook, and as that water absorbs into the oats, that same amount of fluid gets into your system. You could sneak in even more hydration by adding some fruit to your oatmeal. A cup of sliced strawberries is about 90% water, and a cup of sliced peaches has 89% water.

Adding two and a half tablespoons of chia seeds to your oatmeal will give you 10 grams of fiber and 8 grams of healthy fats. To help boost your hydration, soak your chia seeds in water overnight. Add four parts water to your chia seeds to soften them up before adding them to your oatmeal. Chia seeds have 15% of your daily value of magnesium and phosphorus, which are two electrolytes that are important in maintaining the fluid balance in your body, according to the University of Arizona.