Coffee Gives You Energy — But It Can Dehydrate You. Coffee is part of millions of daily routines. It boosts focus, energy, and productivity. But caffeine is also a mild diuretic, which means it can contribute to fluid loss—especially if coffee is your primary morning beverage. That’s where electrolytes come in. Electrolytes like sodium, potassium, and magnesium help regulate fluid balance, muscle function, and energy production. Adding them to your coffee helps your body stay hydrated while...