Do You Really Need 8 Glasses of Water Every Day?

Do you really need 8 glasses of water every day? Can drinking water help me lose weight? Get answers to these questions and more, including if vitamin-spiked water is worth it.

Do I Really Need 8 Glasses of Water a Day?

According to eatingwell.com, adult men need about 13 cups (3 liters) of fluid per day; adult women need about 9 cups (2.2 liters) of fluid.

Does Climate Impact My Water Needs?

Absolutely. In the hot weather we’re experiencing now, you sweat more – especially if you’re exercising. Also, don’t skimp on drinking water when it’s chilly out; you lose a lot of water while breathing dry, frigid air.

Can Foods Help Me Hydrate?

About 20 percent of our fluid intake – or about 2 ½ cups daily – comes from food. All foods deliver some water – and fruits and vegetables deliver the most.

Do Coffee, Tea, Alcohol or Soft Drinks Dehydrate Me?

While caffeine is technically a diuretic (it increases water excretion from our bodies), you retain most of the water from caffeinated beverages, such as coffee, tea and soft drinks. Alcohol, on the other hand, particularly at high doses, can cause you to excrete more than you consume. One drink, especially of beer, won’t do much (it’s about 92 percent water), but wine and hard liquor have more of a dehydrating effect because of their higher alcohol content.

Should I Drink Water with Electrolytes?

Sodium, potassium, chloride, calcium and magnesium are essential for vital reactions in your body—all are electrolytes and all are lost in sweat. It’s important that the concentration of those electrolytes doesn’t get too high or low—and that they are replaced when depleted. If your electrolyte balances are out of whack, you won’t properly absorb the water you do drink. Most electrolytes can be replenished simply with regular, healthy meals. Replenishing what you lost could be as simple as having a few pretzels. You could also try a sports drink, because it has some sodium. For a walk in cool weather or a short run, water will suffice.

Can Drinking Water Help Me Lose Weight?

Maybe. A 2010 study in the journal Obesity found that adults who drank two cups of water before a meal ate less at the meal and lost more weight over 12 weeks than the group who didn’t drink water before eating.